diff --git a/Kconfig b/Kconfig
index c286f28ba88d590422fab033e41d9cd764480bc6..562e352ac3f892b4bd18b3c3c1af46f3d8db79ab 100644
--- a/Kconfig
+++ b/Kconfig
@@ -235,7 +235,12 @@ config SCHED_DEBUG
     depends on DEBUG_VERSION
     help
       If you wish to build LiteOS with support for sched debug.
-
+config SCHED_EDF_DEBUG
+    bool "Enable sched EDF debug Feature"
+    default n
+    depends on SCHED_DEBUG
+    help
+      If you wish to build LiteOS with support for sched debug.
 config USER_INIT_DEBUG
     bool "Enable user init Debug"
     default n
diff --git a/kernel/base/BUILD.gn b/kernel/base/BUILD.gn
index 3212a9a3761918c60c4ca409bc83b208352bdb02..45fdb56bd82ea810adc1bfccb4863e29a7c356c8 100644
--- a/kernel/base/BUILD.gn
+++ b/kernel/base/BUILD.gn
@@ -76,6 +76,7 @@ kernel_module(module_name) {
     "mp/los_percpu.c",
     "mp/los_spinlock.c",
     "om/los_err.c",
+    "sched/los_deadline.c",
     "sched/los_idle.c",
     "sched/los_priority.c",
     "sched/los_sched.c",
diff --git a/kernel/base/core/los_process.c b/kernel/base/core/los_process.c
index b72f69944080da9fefae4b5793940c97c11b32a0..724ecf66490759119fdcb02a4d7beaa22b2168e5 100644
--- a/kernel/base/core/los_process.c
+++ b/kernel/base/core/los_process.c
@@ -939,29 +939,51 @@ LITE_OS_SEC_TEXT_INIT UINT32 OsSystemProcessCreate(VOID)
     return LOS_OK;
 }
 
-STATIC INLINE INT32 OsProcessSchedlerParamCheck(INT32 which, INT32 pid, UINT16 prio, UINT16 policy)
+INT32 OsSchedulerParamCheck(UINT16 policy, BOOL isThread, const LosSchedParam *param)
 {
-    if (OS_PID_CHECK_INVALID(pid)) {
+    if (param == NULL) {
         return LOS_EINVAL;
     }
 
-    if (which != LOS_PRIO_PROCESS) {
-        return LOS_EINVAL;
+    if ((policy == LOS_SCHED_RR) || (isThread && (policy == LOS_SCHED_FIFO))) {
+        if ((param->priority < OS_PROCESS_PRIORITY_HIGHEST) ||
+            (param->priority > OS_PROCESS_PRIORITY_LOWEST)) {
+            return LOS_EINVAL;
+        }
+        return LOS_OK;
+    }
+
+    if (policy == LOS_SCHED_DEADLINE) {
+        if ((param->runTimeUs < OS_SCHED_EDF_MIN_RUNTIME) || (param->runTimeUs >= param->deadlineUs)) {
+            return LOS_EINVAL;
+        }
+        if ((param->deadlineUs < OS_SCHED_EDF_MIN_DEADLINE) || (param->deadlineUs > OS_SCHED_EDF_MAX_DEADLINE)) {
+            return LOS_EINVAL;
+        }
+        if (param->periodUs < param->deadlineUs) {
+            return LOS_EINVAL;
+        }
+        return LOS_OK;
     }
 
-    if (prio > OS_PROCESS_PRIORITY_LOWEST) {
+    return LOS_EINVAL;
+}
+
+STATIC INLINE INT32 ProcessSchedulerParamCheck(INT32 which, INT32 pid, UINT16 policy, const LosSchedParam *param)
+{
+    if (OS_PID_CHECK_INVALID(pid)) {
         return LOS_EINVAL;
     }
 
-    if (policy != LOS_SCHED_RR) {
+    if (which != LOS_PRIO_PROCESS) {
         return LOS_EINVAL;
     }
 
-    return LOS_OK;
+    return OsSchedulerParamCheck(policy, FALSE, param);
 }
 
 #ifdef LOSCFG_SECURITY_CAPABILITY
-STATIC BOOL OsProcessCapPermitCheck(const LosProcessCB *processCB, const SchedParam *param, UINT16 prio)
+STATIC BOOL OsProcessCapPermitCheck(const LosProcessCB *processCB, const SchedParam *param, UINT16 policy, UINT16 prio)
 {
     LosProcessCB *runProcess = OsCurrProcessGet();
 
@@ -971,7 +993,7 @@ STATIC BOOL OsProcessCapPermitCheck(const LosProcessCB *processCB, const SchedPa
     }
 
     /* user mode process can reduce the priority of itself */
-    if ((runProcess->processID == processCB->processID) && (prio > param->basePrio)) {
+    if ((runProcess->processID == processCB->processID) && (policy == LOS_SCHED_RR) && (prio > param->basePrio)) {
         return TRUE;
     }
 
@@ -983,12 +1005,13 @@ STATIC BOOL OsProcessCapPermitCheck(const LosProcessCB *processCB, const SchedPa
 }
 #endif
 
-LITE_OS_SEC_TEXT INT32 OsSetProcessScheduler(INT32 which, INT32 pid, UINT16 prio, UINT16 policy)
+LITE_OS_SEC_TEXT INT32 OsSetProcessScheduler(INT32 which, INT32 pid, UINT16 policy, const LosSchedParam *schedParam)
 {
     SchedParam param = { 0 };
+    BOOL needSched = FALSE;
     UINT32 intSave;
 
-    INT32 ret = OsProcessSchedlerParamCheck(which, pid, prio, policy);
+    INT32 ret = ProcessSchedulerParamCheck(which, pid, policy, schedParam);
     if (ret != LOS_OK) {
         return -ret;
     }
@@ -996,22 +1019,45 @@ LITE_OS_SEC_TEXT INT32 OsSetProcessScheduler(INT32 which, INT32 pid, UINT16 prio
     LosProcessCB *processCB = OS_PCB_FROM_PID(pid);
     SCHEDULER_LOCK(intSave);
     if (OsProcessIsInactive(processCB)) {
-        ret = LOS_ESRCH;
-        goto EXIT;
+        SCHEDULER_UNLOCK(intSave);
+        return -LOS_ESRCH;
     }
 
+    LosTaskCB *taskCB = processCB->threadGroup;
+    taskCB->ops->schedParamGet(taskCB, &param);
+
 #ifdef LOSCFG_SECURITY_CAPABILITY
-    if (!OsProcessCapPermitCheck(processCB, &param, prio)) {
-        ret = LOS_EPERM;
-        goto EXIT;
+    if (!OsProcessCapPermitCheck(processCB, &param, policy, schedParam->priority)) {
+        SCHEDULER_UNLOCK(intSave);
+        return -LOS_EPERM;
     }
 #endif
 
-    LosTaskCB *taskCB = processCB->threadGroup;
-    taskCB->ops->schedParamGet(taskCB, &param);
-    param.basePrio = prio;
+    if (param.policy != policy) {
+        if (policy == LOS_SCHED_DEADLINE) { /* HPF -> EDF */
+            if (processCB->threadNumber > 1) {
+                SCHEDULER_UNLOCK(intSave);
+                return -LOS_EPERM;
+            }
+            OsSchedParamInit(taskCB, policy, NULL, schedParam);
+            needSched = TRUE;
+            goto TO_SCHED;
+        } else if (param.policy == LOS_SCHED_DEADLINE) { /* EDF -> HPF */
+            SCHEDULER_UNLOCK(intSave);
+            return -LOS_EPERM;
+        }
+    }
 
-    BOOL needSched = taskCB->ops->schedParamModify(taskCB, &param);
+    if (policy == LOS_SCHED_DEADLINE) {
+        param.runTimeUs = schedParam->runTimeUs;
+        param.deadlineUs = schedParam->deadlineUs;
+        param.periodUs = schedParam->periodUs;
+    } else {
+        param.basePrio = schedParam->priority;
+    }
+    needSched = taskCB->ops->schedParamModify(taskCB, &param);
+
+TO_SCHED:
     SCHEDULER_UNLOCK(intSave);
 
     LOS_MpSchedule(OS_MP_CPU_ALL);
@@ -1019,25 +1065,26 @@ LITE_OS_SEC_TEXT INT32 OsSetProcessScheduler(INT32 which, INT32 pid, UINT16 prio
         LOS_Schedule();
     }
     return LOS_OK;
-
-EXIT:
-    SCHEDULER_UNLOCK(intSave);
-    return -ret;
 }
 
-LITE_OS_SEC_TEXT INT32 LOS_SetProcessScheduler(INT32 pid, UINT16 policy, UINT16 prio)
+LITE_OS_SEC_TEXT INT32 LOS_SetProcessScheduler(INT32 pid, UINT16 policy, const LosSchedParam *schedParam)
 {
-    return OsSetProcessScheduler(LOS_PRIO_PROCESS, pid, prio, policy);
+    return OsSetProcessScheduler(LOS_PRIO_PROCESS, pid, policy, schedParam);
 }
 
-LITE_OS_SEC_TEXT INT32 LOS_GetProcessScheduler(INT32 pid)
+LITE_OS_SEC_TEXT INT32 LOS_GetProcessScheduler(INT32 pid, INT32 *policy, LosSchedParam *schedParam)
 {
     UINT32 intSave;
+    SchedParam param = { 0 };
 
     if (OS_PID_CHECK_INVALID(pid)) {
         return -LOS_EINVAL;
     }
 
+    if ((policy == NULL) && (schedParam == NULL)) {
+        return -LOS_EINVAL;
+    }
+
     SCHEDULER_LOCK(intSave);
     LosProcessCB *processCB = OS_PCB_FROM_PID(pid);
     if (OsProcessIsUnused(processCB)) {
@@ -1045,14 +1092,48 @@ LITE_OS_SEC_TEXT INT32 LOS_GetProcessScheduler(INT32 pid)
         return -LOS_ESRCH;
     }
 
+    LosTaskCB *taskCB = processCB->threadGroup;
+    taskCB->ops->schedParamGet(taskCB, &param);
     SCHEDULER_UNLOCK(intSave);
 
-    return LOS_SCHED_RR;
+    if (policy != NULL) {
+        if (param.policy == LOS_SCHED_FIFO) {
+            *policy = LOS_SCHED_RR;
+        } else {
+            *policy = param.policy;
+        }
+    }
+
+    if (schedParam != NULL) {
+        if (param.policy == LOS_SCHED_DEADLINE) {
+            schedParam->runTimeUs = param.runTimeUs;
+            schedParam->deadlineUs = param.deadlineUs;
+            schedParam->periodUs = param.periodUs;
+        } else {
+            schedParam->priority = param.basePrio;
+        }
+    }
+    return LOS_OK;
 }
 
-LITE_OS_SEC_TEXT INT32 LOS_SetProcessPriority(INT32 pid, UINT16 prio)
+LITE_OS_SEC_TEXT INT32 LOS_SetProcessPriority(INT32 pid, INT32 prio)
 {
-    return OsSetProcessScheduler(LOS_PRIO_PROCESS, pid, prio, LOS_GetProcessScheduler(pid));
+    INT32 ret;
+    INT32 policy;
+    LosSchedParam param = {
+        .priority = prio,
+    };
+
+    ret = LOS_GetProcessScheduler(pid, &policy, NULL);
+    if (ret != LOS_OK) {
+        return ret;
+    }
+
+    if (policy == LOS_SCHED_DEADLINE) {
+        return -LOS_EINVAL;
+    }
+
+    return OsSetProcessScheduler(LOS_PRIO_PROCESS, pid, (UINT16)policy, &param);
 }
 
 LITE_OS_SEC_TEXT INT32 OsGetProcessPriority(INT32 which, INT32 pid)
@@ -1079,6 +1160,11 @@ LITE_OS_SEC_TEXT INT32 OsGetProcessPriority(INT32 which, INT32 pid)
     LosTaskCB *taskCB = processCB->threadGroup;
     taskCB->ops->schedParamGet(taskCB, &param);
 
+    if (param.policy == LOS_SCHED_DEADLINE) {
+        SCHEDULER_UNLOCK(intSave);
+        return -LOS_EINVAL;
+    }
+
     SCHEDULER_UNLOCK(intSave);
     return param.basePrio;
 }
@@ -1850,35 +1936,47 @@ STATIC UINT32 OsCopyUser(LosProcessCB *childCB, LosProcessCB *parentCB)
     return LOS_OK;
 }
 
-STATIC UINT32 OsCopyTask(UINT32 flags, LosProcessCB *childProcessCB, const CHAR *name, UINTPTR entry, UINT32 size)
+STATIC VOID GetCopyTaskParam(LosProcessCB *childProcessCB, UINTPTR entry, UINT32 size,
+                             TSK_INIT_PARAM_S *taskParam, SchedParam *param)
 {
+    UINT32 intSave;
     LosTaskCB *runTask = OsCurrTaskGet();
-    TSK_INIT_PARAM_S taskParam = { 0 };
-    UINT32 ret, taskID, intSave;
-    SchedParam param = { 0 };
 
     SCHEDULER_LOCK(intSave);
     if (OsProcessIsUserMode(childProcessCB)) {
-        taskParam.pfnTaskEntry = runTask->taskEntry;
-        taskParam.uwStackSize = runTask->stackSize;
-        taskParam.userParam.userArea = runTask->userArea;
-        taskParam.userParam.userMapBase = runTask->userMapBase;
-        taskParam.userParam.userMapSize = runTask->userMapSize;
+        taskParam->pfnTaskEntry = runTask->taskEntry;
+        taskParam->uwStackSize = runTask->stackSize;
+        taskParam->userParam.userArea = runTask->userArea;
+        taskParam->userParam.userMapBase = runTask->userMapBase;
+        taskParam->userParam.userMapSize = runTask->userMapSize;
     } else {
-        taskParam.pfnTaskEntry = (TSK_ENTRY_FUNC)entry;
-        taskParam.uwStackSize = size;
+        taskParam->pfnTaskEntry = (TSK_ENTRY_FUNC)entry;
+        taskParam->uwStackSize = size;
     }
     if (runTask->taskStatus & OS_TASK_FLAG_PTHREAD_JOIN) {
-        taskParam.uwResved = LOS_TASK_ATTR_JOINABLE;
+        taskParam->uwResved = LOS_TASK_ATTR_JOINABLE;
     }
 
-    runTask->ops->schedParamGet(runTask, &param);
+    runTask->ops->schedParamGet(runTask, param);
     SCHEDULER_UNLOCK(intSave);
 
+    taskParam->policy = param->policy;
+    taskParam->runTimeUs = param->runTimeUs;
+    taskParam->deadlineUs = param->deadlineUs;
+    taskParam->periodUs = param->periodUs;
+    taskParam->usTaskPrio = param->priority;
+    taskParam->processID = (UINTPTR)childProcessCB;
+}
+
+STATIC UINT32 OsCopyTask(UINT32 flags, LosProcessCB *childProcessCB, const CHAR *name, UINTPTR entry, UINT32 size)
+{
+    LosTaskCB *runTask = OsCurrTaskGet();
+    TSK_INIT_PARAM_S taskParam = { 0 };
+    UINT32 ret, taskID, intSave;
+    SchedParam param = { 0 };
+
     taskParam.pcName = (CHAR *)name;
-    taskParam.policy = param.policy;
-    taskParam.usTaskPrio = param.priority;
-    taskParam.processID = (UINTPTR)childProcessCB;
+    GetCopyTaskParam(childProcessCB, entry, size, &taskParam, &param);
 
     ret = LOS_TaskCreateOnly(&taskID, &taskParam);
     if (ret != LOS_OK) {
diff --git a/kernel/base/core/los_task.c b/kernel/base/core/los_task.c
index 01b1257a0ecec6083b19e207bc6bb1a500702cfa..2bd80726e5e5f5debc0c69e8a262b76f974c4067 100644
--- a/kernel/base/core/los_task.c
+++ b/kernel/base/core/los_task.c
@@ -543,6 +543,7 @@ STATIC UINT32 TaskCBInit(LosTaskCB *taskCB, const TSK_INIT_PARAM_S *initParam)
     UINT32 ret;
     UINT32 numCount;
     SchedParam schedParam = { 0 };
+    LosSchedParam initSchedParam = {0};
     UINT16 policy = (initParam->policy == LOS_SCHED_NORMAL) ? LOS_SCHED_RR : initParam->policy;
 
     TaskCBBaseInit(taskCB, initParam);
@@ -553,7 +554,14 @@ STATIC UINT32 TaskCBInit(LosTaskCB *taskCB, const TSK_INIT_PARAM_S *initParam)
         return ret;
     }
 
-    ret = OsSchedParamInit(taskCB, policy, &schedParam, initParam);
+    if (policy == LOS_SCHED_DEADLINE) {
+        initSchedParam.runTimeUs = initParam->runTimeUs;
+        initSchedParam.deadlineUs = initParam->deadlineUs;
+        initSchedParam.periodUs = initParam->periodUs;
+    } else {
+        initSchedParam.priority = initParam->usTaskPrio;
+    }
+    ret = OsSchedParamInit(taskCB, policy, &schedParam, &initSchedParam);
     if (ret != LOS_OK) {
         return ret;
     }
@@ -1365,6 +1373,8 @@ LITE_OS_SEC_TEXT_INIT UINT32 OsCreateUserTask(UINTPTR processID, TSK_INIT_PARAM_
     UINT32 taskID;
     UINT32 ret;
     UINT32 intSave;
+    INT32 policy;
+    SchedParam param;
 
     ret = OsCreateUserTaskParamCheck(processID, initParam);
     if (ret != LOS_OK) {
@@ -1373,14 +1383,25 @@ LITE_OS_SEC_TEXT_INIT UINT32 OsCreateUserTask(UINTPTR processID, TSK_INIT_PARAM_
 
     initParam->uwStackSize = OS_USER_TASK_SYSCALL_STACK_SIZE;
     initParam->usTaskPrio = OS_TASK_PRIORITY_LOWEST;
-    initParam->policy = LOS_SCHED_RR;
     if (processID == OS_INVALID_VALUE) {
         SCHEDULER_LOCK(intSave);
         LosProcessCB *processCB = OsCurrProcessGet();
         initParam->processID = (UINTPTR)processCB;
         initParam->consoleID = processCB->consoleID;
         SCHEDULER_UNLOCK(intSave);
+        ret = LOS_GetProcessScheduler(processCB->processID, &policy, NULL);
+        if (ret != LOS_OK) {
+            return OS_INVALID_VALUE;
+        }
+        initParam->policy = policy;
+        if (policy == LOS_SCHED_DEADLINE) {
+            OsSchedProcessDefaultSchedParamGet((UINT16)policy, &param);
+            initParam->runTimeUs = param.runTimeUs;
+            initParam->deadlineUs = param.deadlineUs;
+            initParam->periodUs = param.periodUs;
+        }
     } else {
+        initParam->policy = LOS_SCHED_RR;
         initParam->processID = processID;
         initParam->consoleID = 0;
     }
diff --git a/kernel/base/include/los_process_pri.h b/kernel/base/include/los_process_pri.h
index 1fa5acbb5cffde54bbbe76d4537a090b58e666c6..accd618c1a4806a5a6d41acf81f6ebb89cdd9d0e 100644
--- a/kernel/base/include/los_process_pri.h
+++ b/kernel/base/include/los_process_pri.h
@@ -535,7 +535,7 @@ extern LosVmSpace *OsExecProcessVmSpaceReplace(LosVmSpace *newSpace, UINTPTR sta
 extern UINT32 OsExecRecycleAndInit(LosProcessCB *processCB, const CHAR *name, LosVmSpace *oldAspace, UINTPTR oldFiles);
 extern UINT32 OsExecStart(const TSK_ENTRY_FUNC entry, UINTPTR sp, UINTPTR mapBase, UINT32 mapSize);
 extern UINT32 OsSetProcessName(LosProcessCB *processCB, const CHAR *name);
-extern INT32 OsSetProcessScheduler(INT32 which, INT32 pid, UINT16 prio, UINT16 policy);
+extern INT32 OsSetProcessScheduler(INT32 which, INT32 pid, UINT16 policy, const LosSchedParam *param);
 extern INT32 OsGetProcessPriority(INT32 which, INT32 pid);
 extern LosProcessCB *OsGetUserInitProcess(VOID);
 extern LosProcessCB *OsGetIdleProcess(VOID);
@@ -553,6 +553,7 @@ extern VOID OsProcessThreadGroupDestroy(VOID);
 extern UINT32 OsGetProcessGroupCB(UINT32 pid, UINTPTR *ppgroupLeader);
 extern LosProcessCB *OsGetDefaultProcessCB(VOID);
 extern ProcessGroup *OsCreateProcessGroup(LosProcessCB *processCB);
+INT32 OsSchedulerParamCheck(UINT16 policy, BOOL isThread, const LosSchedParam *param);
 #ifdef __cplusplus
 #if __cplusplus
 }
diff --git a/kernel/base/include/los_sched_pri.h b/kernel/base/include/los_sched_pri.h
index 1eae0a62fe63548aec9c3e0ec51785f63df6781a..1bbf007029c14a58034adcbc8624d0b724cba147 100644
--- a/kernel/base/include/los_sched_pri.h
+++ b/kernel/base/include/los_sched_pri.h
@@ -68,6 +68,10 @@ extern "C" {
 #define OS_SCHED_TICK_TO_CYCLE(ticks) ((UINT64)ticks * OS_CYCLE_PER_TICK)
 #define AFFI_MASK_TO_CPUID(mask)      ((UINT16)((mask) - 1))
 
+#define OS_SCHED_EDF_MIN_RUNTIME    100 /* 100 us */
+#define OS_SCHED_EDF_MIN_DEADLINE   400 /* 400 us */
+#define OS_SCHED_EDF_MAX_DEADLINE   5000000 /* 5 s */
+
 extern UINT32 g_taskScheduled;
 #define OS_SCHEDULER_ACTIVE (g_taskScheduled & (1U << ArchCurrCpuid()))
 #define OS_SCHEDULER_ALL_ACTIVE (g_taskScheduled == LOSCFG_KERNEL_CPU_MASK)
@@ -98,9 +102,16 @@ typedef struct {
     UINT32   queueBitmap;
 } HPFRunqueue;
 
+typedef struct {
+    LOS_DL_LIST root;
+    LOS_DL_LIST waitList;
+    UINT64 period;
+} EDFRunqueue;
+
 typedef struct {
     SortLinkAttribute timeoutQueue; /* task timeout queue */
     HPFRunqueue       *hpfRunqueue;
+    EDFRunqueue       *edfRunqueue;
     UINT64            responseTime; /* Response time for current CPU tick interrupts */
     UINT32            responseID;   /* The response ID of the current CPU tick interrupt */
     LosTaskCB         *idleTask;   /* idle task id */
@@ -212,30 +223,52 @@ STATIC INLINE VOID OsSchedRunqueuePendingSet(VOID)
     OsSchedRunqueue()->schedFlag |= INT_PEND_RESCH;
 }
 
-#define LOS_SCHED_NORMAL  0U
-#define LOS_SCHED_FIFO    1U
-#define LOS_SCHED_RR      2U
-#define LOS_SCHED_IDLE    3U
+#define LOS_SCHED_NORMAL    0U
+#define LOS_SCHED_FIFO      1U
+#define LOS_SCHED_RR        2U
+#define LOS_SCHED_IDLE      3U
+#define LOS_SCHED_DEADLINE  6U
 
 typedef struct {
     UINT16 policy;
+    /* HPF scheduling parameters */
     UINT16 basePrio;
     UINT16 priority;
     UINT32 timeSlice;
+
+    /* EDF scheduling parameters */
+    INT32  runTimeUs;
+    UINT32 deadlineUs;
+    UINT32 periodUs;
 } SchedParam;
 
 typedef struct {
     UINT16  policy; /* This field must be present for all scheduling policies and must be the first in the structure */
     UINT16  basePrio;
     UINT16  priority;
-    UINT32  initTimeSlice;
-    UINT32  priBitmap; /**< Bitmap for recording the change of task priority, the priority can not be greater than 31 */
+    UINT32  initTimeSlice; /* cycle */
+    UINT32  priBitmap; /* Bitmap for recording the change of task priority, the priority can not be greater than 31 */
 } SchedHPF;
 
+#define EDF_UNUSED       0
+#define EDF_NEXT_PERIOD  1
+#define EDF_WAIT_FOREVER 2
+#define EDF_INIT         3
+typedef struct {
+    UINT16 policy;
+    UINT16 cpuid;
+    UINT32 flags;
+    INT32  runTime;    /* cycle */
+    UINT64 deadline;   /* deadline >> runTime */
+    UINT64 period;     /* period >= deadline */
+    UINT64 finishTime; /* startTime + deadline */
+} SchedEDF;
+
 typedef struct {
     union {
+        SchedEDF edf;
         SchedHPF hpf;
-    } Policy;
+    };
 } SchedPolicy;
 
 typedef struct {
@@ -243,6 +276,7 @@ typedef struct {
     VOID (*enqueue)(SchedRunqueue *rq, LosTaskCB *taskCB);
     VOID (*start)(SchedRunqueue *rq, LosTaskCB *taskCB);
     VOID (*exit)(LosTaskCB *taskCB);
+    UINT64 (*waitTimeGet)(LosTaskCB *taskCB);
     UINT32 (*wait)(LosTaskCB *runTask, LOS_DL_LIST *list, UINT32 timeout);
     VOID (*wake)(LosTaskCB *taskCB);
     BOOL (*schedParamModify)(LosTaskCB *taskCB, const SchedParam *param);
@@ -463,6 +497,12 @@ STATIC INLINE BOOL OsTaskIsBlocked(const LosTaskCB *taskCB)
     return ((taskCB->taskStatus & (OS_TASK_STATUS_SUSPENDED | OS_TASK_STATUS_PENDING | OS_TASK_STATUS_DELAY)) != 0);
 }
 
+STATIC INLINE BOOL OsSchedPolicyIsEDF(const LosTaskCB *taskCB)
+{
+    const SchedEDF *sched = (const SchedEDF *)&taskCB->sp;
+    return (sched->policy == LOS_SCHED_DEADLINE);
+}
+
 STATIC INLINE LosTaskCB *OsCurrTaskGet(VOID)
 {
     return (LosTaskCB *)ArchCurrTaskGet();
@@ -623,6 +663,16 @@ STATIC INLINE VOID SchedTaskUnfreeze(LosTaskCB *taskCB)
 BOOL OsSchedLimitCheckTime(LosTaskCB *task);
 #endif
 
+STATIC INLINE LosTaskCB *EDFRunqueueTopTaskGet(EDFRunqueue *rq)
+{
+    LOS_DL_LIST *root = &rq->root;
+    if (LOS_ListEmpty(root)) {
+        return NULL;
+    }
+
+    return LOS_DL_LIST_ENTRY(LOS_DL_LIST_FIRST(root), LosTaskCB, pendList);
+}
+
 STATIC INLINE LosTaskCB *HPFRunqueueTopTaskGet(HPFRunqueue *rq)
 {
     LosTaskCB *newTask = NULL;
@@ -660,9 +710,16 @@ STATIC INLINE LosTaskCB *HPFRunqueueTopTaskGet(HPFRunqueue *rq)
     return NULL;
 }
 
+VOID EDFProcessDefaultSchedParamGet(SchedParam *param);
+VOID EDFSchedPolicyInit(SchedRunqueue *rq);
+UINT32 EDFTaskSchedParamInit(LosTaskCB *taskCB, UINT16 policy,
+                             const SchedParam *parentParam,
+                             const LosSchedParam *param);
+
 VOID HPFSchedPolicyInit(SchedRunqueue *rq);
 VOID HPFTaskSchedParamInit(LosTaskCB *taskCB, UINT16 policy,
-                           const SchedParam *parentParam, const TSK_INIT_PARAM_S *param);
+                           const SchedParam *parentParam,
+                           const LosSchedParam *param);
 VOID HPFProcessDefaultSchedParamGet(SchedParam *param);
 
 VOID IdleTaskSchedParamInit(LosTaskCB *taskCB);
@@ -670,7 +727,8 @@ VOID IdleTaskSchedParamInit(LosTaskCB *taskCB);
 INT32 OsSchedParamCompare(const LosTaskCB *task1, const LosTaskCB *task2);
 VOID OsSchedPriorityInheritance(LosTaskCB *owner, const SchedParam *param);
 UINT32 OsSchedParamInit(LosTaskCB *taskCB, UINT16 policy,
-                        const SchedParam *parentParam, const TSK_INIT_PARAM_S *param);
+                        const SchedParam *parentParam,
+                        const LosSchedParam *param);
 VOID OsSchedProcessDefaultSchedParamGet(UINT16 policy, SchedParam *param);
 
 VOID OsSchedResponseTimeReset(UINT64 responseTime);
diff --git a/kernel/base/include/los_statistics_pri.h b/kernel/base/include/los_statistics_pri.h
index 2bfac6042e3ba73b209c27c28223686b3a971618..c1ec0d683f66bc7084ae0a33f7666cbe6b467384 100644
--- a/kernel/base/include/los_statistics_pri.h
+++ b/kernel/base/include/los_statistics_pri.h
@@ -57,9 +57,11 @@ typedef struct {
 #ifdef LOSCFG_SCHED_TICK_DEBUG
 VOID OsSchedDebugRecordData(VOID);
 UINT32 OsShellShowTickResponse(VOID);
-UINT32 OsShellShowSchedStatistics(VOID);
 UINT32 OsSchedDebugInit(VOID);
 #endif
+UINT32 OsShellShowSchedStatistics(VOID);
+UINT32 OsShellShowEdfSchedStatistics(VOID);
+VOID EDFDebugRecord(UINTPTR *taskCB, UINT64 oldFinish);
 #endif
 
 #ifdef __cplusplus
diff --git a/kernel/base/include/los_sys_pri.h b/kernel/base/include/los_sys_pri.h
index e937e3aa886b1045c849fcdfac70483ad458bad6..01a90e8b096d1c59489cea1d0c1603ffca11a9ba 100644
--- a/kernel/base/include/los_sys_pri.h
+++ b/kernel/base/include/los_sys_pri.h
@@ -101,6 +101,16 @@ extern "C" {
  */
 #define OS_NS_PER_TICK          (OS_SYS_NS_PER_SECOND / LOSCFG_BASE_CORE_TICK_PER_SECOND)
 
+#define OS_US_TO_CYCLE(time, freq)  ((((time) / OS_SYS_US_PER_SECOND) * (freq)) + \
+    (((time) % OS_SYS_US_PER_SECOND) * (freq) / OS_SYS_US_PER_SECOND))
+
+#define OS_SYS_US_TO_CYCLE(time) OS_US_TO_CYCLE((time), OS_SYS_CLOCK)
+
+#define OS_CYCLE_TO_US(cycle, freq) ((((cycle) / (freq)) * OS_SYS_US_PER_SECOND) + \
+    ((cycle) % (freq) * OS_SYS_US_PER_SECOND / (freq)))
+
+#define OS_SYS_CYCLE_TO_US(cycle) OS_CYCLE_TO_US((cycle), OS_SYS_CLOCK)
+
 /**
  * @ingroup los_sys
  * The maximum length of name.
diff --git a/kernel/base/misc/task_shellcmd.c b/kernel/base/misc/task_shellcmd.c
index 9f8c4a1e88f5dcd3dfca3c47caa90d5fc635b06a..4b78af58e11e65e30fe0580c27bd7a10ba26c4cb 100644
--- a/kernel/base/misc/task_shellcmd.c
+++ b/kernel/base/misc/task_shellcmd.c
@@ -53,6 +53,9 @@
 #include "los_sched_pri.h"
 #include "los_swtmr_pri.h"
 #include "los_info_pri.h"
+#ifdef LOSCFG_SCHED_DEBUG
+#include "los_statistics_pri.h"
+#endif
 
 #define OS_PROCESS_MEM_INFO 0x2U
 #undef SHOW
@@ -93,6 +96,8 @@ STATIC UINT8 *ConvertSchedPolicyToString(UINT16 policy)
         return (UINT8 *)"RR";
     } else if (policy == LOS_SCHED_FIFO) {
         return (UINT8 *)"FIFO";
+    } else if (policy == LOS_SCHED_DEADLINE) {
+        return (UINT8 *)"EDF";
     } else if (policy == LOS_SCHED_IDLE) {
         return (UINT8 *)"IDLE";
     }
@@ -200,12 +205,10 @@ STATIC UINT8 *ConvertTaskStatusToString(UINT16 taskStatus)
         return (UINT8 *)"Suspended";
     } else if (taskStatus & OS_TASK_STATUS_DELAY) {
         return (UINT8 *)"Delay";
+    } else if (taskStatus & OS_TASK_STATUS_PEND_TIME) {
+        return (UINT8 *)"PendTime";
     } else if (taskStatus & OS_TASK_STATUS_PENDING) {
-        if (taskStatus & OS_TASK_STATUS_PEND_TIME) {
-            return (UINT8 *)"PendTime";
-        } else {
-            return (UINT8 *)"Pending";
-        }
+        return (UINT8 *)"Pending";
     } else if (taskStatus & OS_TASK_STATUS_EXIT) {
         return (UINT8 *)"Exit";
     }
@@ -413,11 +416,20 @@ LITE_OS_SEC_TEXT_MINOR UINT32 OsShellCmdDumpTask(INT32 argc, const CHAR **argv)
         }
         goto TASK_HELP;
 #endif
+#ifdef LOSCFG_SCHED_HPF_DEBUG
     } else if (strcmp("-t", argv[0]) == 0) {
         if (!OsShellShowSchedStatistics()) {
             return LOS_OK;
         }
         goto TASK_HELP;
+#endif
+#ifdef LOSCFG_SCHED_EDF_DEBUG
+    } else if (strcmp("-e", argv[0]) == 0) {
+        if (!OsShellShowEdfSchedStatistics()) {
+            return LOS_OK;
+        }
+        goto TASK_HELP;
+#endif
 #endif
     } else {
         goto TASK_HELP;
diff --git a/kernel/base/sched/los_deadline.c b/kernel/base/sched/los_deadline.c
new file mode 100644
index 0000000000000000000000000000000000000000..ed6d0c20db7c9ac8270991fbcf317d9e454d08c6
--- /dev/null
+++ b/kernel/base/sched/los_deadline.c
@@ -0,0 +1,403 @@
+/*
+ * Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "los_sched_pri.h"
+#include "los_task_pri.h"
+#include "los_process_pri.h"
+#include "los_hook.h"
+#include "los_tick_pri.h"
+#include "los_sys_pri.h"
+
+STATIC EDFRunqueue g_schedEDF;
+
+STATIC VOID EDFDequeue(SchedRunqueue *rq, LosTaskCB *taskCB);
+STATIC VOID EDFEnqueue(SchedRunqueue *rq, LosTaskCB *taskCB);
+STATIC UINT64 EDFWaitTimeGet(LosTaskCB *taskCB);
+STATIC UINT32 EDFWait(LosTaskCB *runTask, LOS_DL_LIST *list, UINT32 ticks);
+STATIC VOID EDFWake(LosTaskCB *resumedTask);
+STATIC BOOL EDFSchedParamModify(LosTaskCB *taskCB, const SchedParam *param);
+STATIC UINT32 EDFSchedParamGet(const LosTaskCB *taskCB, SchedParam *param);
+STATIC UINT32 EDFDelay(LosTaskCB *runTask, UINT64 waitTime);
+STATIC VOID EDFYield(LosTaskCB *runTask);
+STATIC VOID EDFExit(LosTaskCB *taskCB);
+STATIC UINT32 EDFSuspend(LosTaskCB *taskCB);
+STATIC UINT32 EDFResume(LosTaskCB *taskCB, BOOL *needSched);
+STATIC UINT64 EDFTimeSliceGet(const LosTaskCB *taskCB);
+STATIC VOID EDFTimeSliceUpdate(SchedRunqueue *rq, LosTaskCB *taskCB, UINT64 currTime);
+STATIC INT32 EDFParamCompare(const SchedPolicy *sp1, const SchedPolicy *sp2);
+STATIC VOID EDFPriorityInheritance(LosTaskCB *owner, const SchedParam *param);
+STATIC VOID EDFPriorityRestore(LosTaskCB *owner, const LOS_DL_LIST *list, const SchedParam *param);
+
+const STATIC SchedOps g_deadlineOps = {
+    .dequeue = EDFDequeue,
+    .enqueue = EDFEnqueue,
+    .waitTimeGet = EDFWaitTimeGet,
+    .wait = EDFWait,
+    .wake = EDFWake,
+    .schedParamModify = EDFSchedParamModify,
+    .schedParamGet = EDFSchedParamGet,
+    .delay = EDFDelay,
+    .yield = EDFYield,
+    .start = EDFDequeue,
+    .exit = EDFExit,
+    .suspend = EDFSuspend,
+    .resume = EDFResume,
+    .deadlineGet = EDFTimeSliceGet,
+    .timeSliceUpdate = EDFTimeSliceUpdate,
+    .schedParamCompare = EDFParamCompare,
+    .priorityInheritance = EDFPriorityInheritance,
+    .priorityRestore = EDFPriorityRestore,
+};
+
+STATIC VOID EDFTimeSliceUpdate(SchedRunqueue *rq, LosTaskCB *taskCB, UINT64 currTime)
+{
+    SchedEDF *sched = (SchedEDF *)&taskCB->sp;
+
+    LOS_ASSERT(currTime >= taskCB->startTime);
+
+    if (taskCB->timeSlice <= 0) {
+        taskCB->irqUsedTime = 0;
+        return;
+    }
+
+    INT32 incTime = (currTime - taskCB->startTime - taskCB->irqUsedTime);
+    LOS_ASSERT(incTime >= 0);
+
+#ifdef LOSCFG_SCHED_EDF_DEBUG
+    taskCB->schedStat.timeSliceRealTime += incTime;
+    taskCB->schedStat.allRuntime += (currTime - taskCB->startTime);
+#endif
+
+    taskCB->timeSlice -= incTime;
+    taskCB->irqUsedTime = 0;
+    taskCB->startTime = currTime;
+
+    if ((sched->finishTime > currTime) && (taskCB->timeSlice > 0)) {
+        return;
+    }
+
+    rq->schedFlag |= INT_PEND_RESCH;
+    if (sched->finishTime <= currTime) {
+#ifdef LOSCFG_SCHED_EDF_DEBUG
+        EDFDebugRecord((UINTPTR *)taskCB, sched->finishTime);
+#endif
+
+        taskCB->timeSlice = 0;
+        PrintExcInfo("EDF task %u is timeout, runTime: %d us period: %llu us\n", taskCB->taskID,
+                     (INT32)OS_SYS_CYCLE_TO_US((UINT64)sched->runTime), OS_SYS_CYCLE_TO_US(sched->period));
+    }
+}
+
+STATIC UINT64 EDFTimeSliceGet(const LosTaskCB *taskCB)
+{
+    SchedEDF *sched = (SchedEDF *)&taskCB->sp;
+    UINT64 endTime = taskCB->startTime + taskCB->timeSlice;
+    return (endTime > sched->finishTime) ? sched->finishTime : endTime;
+}
+
+STATIC VOID DeadlineQueueInsert(EDFRunqueue *rq, LosTaskCB *taskCB)
+{
+    LOS_DL_LIST *root = &rq->root;
+    if (LOS_ListEmpty(root)) {
+        LOS_ListTailInsert(root, &taskCB->pendList);
+        return;
+    }
+
+    LOS_DL_LIST *list = root->pstNext;
+    do {
+        LosTaskCB *readyTask = LOS_DL_LIST_ENTRY(list, LosTaskCB, pendList);
+        if (EDFParamCompare(&readyTask->sp, &taskCB->sp) > 0) {
+            LOS_ListHeadInsert(list, &taskCB->pendList);
+            return;
+        }
+        list = list->pstNext;
+    } while (list != root);
+
+    LOS_ListHeadInsert(list, &taskCB->pendList);
+}
+
+STATIC VOID EDFEnqueue(SchedRunqueue *rq, LosTaskCB *taskCB)
+{
+    LOS_ASSERT(!(taskCB->taskStatus & OS_TASK_STATUS_READY));
+
+    EDFRunqueue *erq = rq->edfRunqueue;
+    SchedEDF *sched = (SchedEDF *)&taskCB->sp;
+    if (taskCB->timeSlice <= 0) {
+#ifdef LOSCFG_SCHED_EDF_DEBUG
+        UINT64 oldFinish = sched->finishTime;
+#endif
+        UINT64 currTime = OsGetCurrSchedTimeCycle();
+        if (sched->flags == EDF_INIT) {
+            sched->finishTime = currTime;
+        } else if (sched->flags != EDF_NEXT_PERIOD) {
+            /* The start time of the next period */
+            sched->finishTime = (sched->finishTime - sched->deadline) + sched->period;
+        }
+
+        /* Calculate the start time of the next period */
+        while (1) {
+            /* The deadline of the next period */
+            UINT64 finishTime = sched->finishTime + sched->deadline;
+            if ((finishTime <= currTime) || ((sched->finishTime + sched->runTime) > finishTime)) {
+                /* This period cannot meet the minimum running time, so it is migrated to the next period */
+                sched->finishTime += sched->period;
+                continue;
+            }
+            break;
+        }
+
+        if (sched->finishTime > currTime) {
+            /* Wait for the next period to start */
+            LOS_ListTailInsert(&erq->waitList, &taskCB->pendList);
+            taskCB->waitTime = OS_SCHED_MAX_RESPONSE_TIME;
+            if (!OsTaskIsRunning(taskCB)) {
+                OsSchedTimeoutQueueAdd(taskCB, sched->finishTime);
+            }
+#ifdef LOSCFG_SCHED_EDF_DEBUG
+            if (oldFinish != sched->finishTime) {
+                EDFDebugRecord((UINTPTR *)taskCB, oldFinish);
+                taskCB->schedStat.allRuntime = 0;
+                taskCB->schedStat.timeSliceRealTime = 0;
+                taskCB->schedStat.pendTime = 0;
+            }
+#endif
+            taskCB->taskStatus |= OS_TASK_STATUS_PEND_TIME;
+            sched->flags = EDF_NEXT_PERIOD;
+            return;
+        }
+
+        sched->finishTime += sched->deadline;
+        taskCB->timeSlice = sched->runTime;
+        sched->flags = EDF_UNUSED;
+    }
+
+    DeadlineQueueInsert(erq, taskCB);
+    taskCB->taskStatus &= ~(OS_TASK_STATUS_BLOCKED | OS_TASK_STATUS_TIMEOUT);
+    taskCB->taskStatus |= OS_TASK_STATUS_READY;
+}
+
+STATIC VOID EDFDequeue(SchedRunqueue *rq, LosTaskCB *taskCB)
+{
+    (VOID)rq;
+    LOS_ListDelete(&taskCB->pendList);
+    taskCB->taskStatus &= ~OS_TASK_STATUS_READY;
+}
+
+STATIC VOID EDFExit(LosTaskCB *taskCB)
+{
+    if (taskCB->taskStatus & OS_TASK_STATUS_READY) {
+        EDFDequeue(OsSchedRunqueue(), taskCB);
+    } else if (taskCB->taskStatus & OS_TASK_STATUS_PENDING) {
+        LOS_ListDelete(&taskCB->pendList);
+        taskCB->taskStatus &= ~OS_TASK_STATUS_PENDING;
+    }
+    if (taskCB->taskStatus & (OS_TASK_STATUS_DELAY | OS_TASK_STATUS_PEND_TIME)) {
+        OsSchedTimeoutQueueDelete(taskCB);
+        taskCB->taskStatus &= ~(OS_TASK_STATUS_DELAY | OS_TASK_STATUS_PEND_TIME);
+    }
+}
+
+STATIC VOID EDFYield(LosTaskCB *runTask)
+{
+    SchedRunqueue *rq = OsSchedRunqueue();
+    runTask->timeSlice = 0;
+
+    runTask->startTime = OsGetCurrSchedTimeCycle();
+    EDFEnqueue(rq, runTask);
+    OsSchedResched();
+}
+
+STATIC UINT32 EDFDelay(LosTaskCB *runTask, UINT64 waitTime)
+{
+    runTask->taskStatus |= OS_TASK_STATUS_DELAY;
+    runTask->waitTime = waitTime;
+    OsSchedResched();
+    return LOS_OK;
+}
+
+STATIC UINT64 EDFWaitTimeGet(LosTaskCB *taskCB)
+{
+    const SchedEDF *sched = (const SchedEDF *)&taskCB->sp;
+    if (sched->flags != EDF_WAIT_FOREVER) {
+        taskCB->waitTime += taskCB->startTime;
+    }
+    return (taskCB->waitTime >= sched->finishTime) ? sched->finishTime : taskCB->waitTime;
+}
+
+STATIC UINT32 EDFWait(LosTaskCB *runTask, LOS_DL_LIST *list, UINT32 ticks)
+{
+    SchedEDF *sched = (SchedEDF *)&runTask->sp;
+    runTask->taskStatus |= (OS_TASK_STATUS_PENDING | OS_TASK_STATUS_PEND_TIME);
+    LOS_ListTailInsert(list, &runTask->pendList);
+
+    if (ticks != LOS_WAIT_FOREVER) {
+        runTask->waitTime = OS_SCHED_TICK_TO_CYCLE(ticks);
+    } else {
+        sched->flags = EDF_WAIT_FOREVER;
+        runTask->waitTime = OS_SCHED_MAX_RESPONSE_TIME;
+    }
+
+    if (OsPreemptableInSched()) {
+        OsSchedResched();
+        if (runTask->taskStatus & OS_TASK_STATUS_TIMEOUT) {
+            runTask->taskStatus &= ~OS_TASK_STATUS_TIMEOUT;
+            return LOS_ERRNO_TSK_TIMEOUT;
+        }
+    }
+
+    return LOS_OK;
+}
+
+STATIC VOID EDFWake(LosTaskCB *resumedTask)
+{
+    LOS_ListDelete(&resumedTask->pendList);
+    resumedTask->taskStatus &= ~OS_TASK_STATUS_PENDING;
+
+    if (resumedTask->taskStatus & OS_TASK_STATUS_PEND_TIME) {
+        OsSchedTimeoutQueueDelete(resumedTask);
+        resumedTask->taskStatus &= ~OS_TASK_STATUS_PEND_TIME;
+    }
+
+    if (!(resumedTask->taskStatus & OS_TASK_STATUS_SUSPENDED)) {
+#ifdef LOSCFG_SCHED_EDF_DEBUG
+        resumedTask->schedStat.pendTime += OsGetCurrSchedTimeCycle() - resumedTask->startTime;
+        resumedTask->schedStat.pendCount++;
+#endif
+        EDFEnqueue(OsSchedRunqueue(), resumedTask);
+    }
+}
+
+STATIC BOOL EDFSchedParamModify(LosTaskCB *taskCB, const SchedParam *param)
+{
+    SchedRunqueue *rq = OsSchedRunqueue();
+    SchedEDF *sched = (SchedEDF *)&taskCB->sp;
+
+    taskCB->timeSlice = 0;
+    sched->runTime = (INT32)OS_SYS_US_TO_CYCLE(param->runTimeUs);
+    sched->period = OS_SYS_US_TO_CYCLE(param->periodUs);
+
+    if (taskCB->taskStatus & OS_TASK_STATUS_READY) {
+        EDFDequeue(rq, taskCB);
+        sched->deadline = OS_SYS_US_TO_CYCLE(param->deadlineUs);
+        EDFEnqueue(rq, taskCB);
+        return TRUE;
+    }
+
+    sched->deadline = OS_SYS_US_TO_CYCLE(param->deadlineUs);
+    if (taskCB->taskStatus & OS_TASK_STATUS_INIT) {
+        EDFEnqueue(rq, taskCB);
+        return TRUE;
+    }
+
+    if (taskCB->taskStatus & OS_TASK_STATUS_RUNNING) {
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+STATIC UINT32 EDFSchedParamGet(const LosTaskCB *taskCB, SchedParam *param)
+{
+    SchedEDF *sched = (SchedEDF *)&taskCB->sp;
+    param->policy = sched->policy;
+    param->runTimeUs = (INT32)OS_SYS_CYCLE_TO_US((UINT64)sched->runTime);
+    param->deadlineUs = OS_SYS_CYCLE_TO_US(sched->deadline);
+    param->periodUs = OS_SYS_CYCLE_TO_US(sched->period);
+    return LOS_OK;
+}
+
+STATIC UINT32 EDFSuspend(LosTaskCB *taskCB)
+{
+    return LOS_EOPNOTSUPP;
+}
+
+STATIC UINT32 EDFResume(LosTaskCB *taskCB, BOOL *needSched)
+{
+    return LOS_EOPNOTSUPP;
+}
+
+STATIC INT32 EDFParamCompare(const SchedPolicy *sp1, const SchedPolicy *sp2)
+{
+    const SchedEDF *param1 = (const SchedEDF *)sp1;
+    const SchedEDF *param2 = (const SchedEDF *)sp2;
+
+    return (INT32)(param1->finishTime - param2->finishTime);
+}
+
+STATIC VOID EDFPriorityInheritance(LosTaskCB *owner, const SchedParam *param)
+{
+    (VOID)owner;
+    (VOID)param;
+}
+
+STATIC VOID EDFPriorityRestore(LosTaskCB *owner, const LOS_DL_LIST *list, const SchedParam *param)
+{
+    (VOID)owner;
+    (VOID)list;
+    (VOID)param;
+}
+
+UINT32 EDFTaskSchedParamInit(LosTaskCB *taskCB, UINT16 policy,
+                             const SchedParam *parentParam,
+                             const LosSchedParam *param)
+{
+    (VOID)parentParam;
+    SchedEDF *sched = (SchedEDF *)&taskCB->sp;
+    sched->flags = EDF_INIT;
+    sched->policy = policy;
+    sched->runTime = (INT32)OS_SYS_US_TO_CYCLE((UINT64)param->runTimeUs);
+    sched->deadline = OS_SYS_US_TO_CYCLE(param->deadlineUs);
+    sched->period = OS_SYS_US_TO_CYCLE(param->periodUs);
+    sched->finishTime = 0;
+    taskCB->timeSlice = 0;
+    taskCB->ops = &g_deadlineOps;
+    return LOS_OK;
+}
+
+VOID EDFProcessDefaultSchedParamGet(SchedParam *param)
+{
+    param->runTimeUs = OS_SCHED_EDF_MIN_RUNTIME;
+    param->deadlineUs = OS_SCHED_EDF_MAX_DEADLINE;
+    param->periodUs = param->deadlineUs;
+}
+
+VOID EDFSchedPolicyInit(SchedRunqueue *rq)
+{
+    if (ArchCurrCpuid() > 0) {
+        rq->edfRunqueue = &g_schedEDF;
+        return;
+    }
+
+    EDFRunqueue *erq = &g_schedEDF;
+    erq->period = OS_SCHED_MAX_RESPONSE_TIME;
+    LOS_ListInit(&erq->root);
+    LOS_ListInit(&erq->waitList);
+    rq->edfRunqueue = erq;
+}
diff --git a/kernel/base/sched/los_idle.c b/kernel/base/sched/los_idle.c
index d0b3b0edc2a9d2dc3e0503eb19e93fb145fa6e9d..d2538595fc98b1600de8adb1cbc66ae302b185d3 100644
--- a/kernel/base/sched/los_idle.c
+++ b/kernel/base/sched/los_idle.c
@@ -48,6 +48,7 @@ STATIC VOID IdlePriorityRestore(LosTaskCB *owner, const LOS_DL_LIST *list, const
 const STATIC SchedOps g_idleOps = {
     .dequeue = IdleDequeue,
     .enqueue = IdleEnqueue,
+    .waitTimeGet = NULL,
     .wait = IdleWait,
     .wake = IdleWake,
     .schedParamModify = NULL,
diff --git a/kernel/base/sched/los_priority.c b/kernel/base/sched/los_priority.c
index e0db64f27d39b0bec1be4f809c8da0fc5dd89c4f..610ba119b98c23e25304d1b969fbc45102415977 100644
--- a/kernel/base/sched/los_priority.c
+++ b/kernel/base/sched/los_priority.c
@@ -47,6 +47,7 @@ STATIC HPFRunqueue g_schedHPF;
 
 STATIC VOID HPFDequeue(SchedRunqueue *rq, LosTaskCB *taskCB);
 STATIC VOID HPFEnqueue(SchedRunqueue *rq, LosTaskCB *taskCB);
+STATIC UINT64 HPFWaitTimeGet(LosTaskCB *taskCB);
 STATIC UINT32 HPFWait(LosTaskCB *runTask, LOS_DL_LIST *list, UINT32 ticks);
 STATIC VOID HPFWake(LosTaskCB *resumedTask);
 STATIC BOOL HPFSchedParamModify(LosTaskCB *taskCB, const SchedParam *param);
@@ -66,6 +67,7 @@ STATIC VOID HPFPriorityRestore(LosTaskCB *owner, const LOS_DL_LIST *list, const
 const STATIC SchedOps g_priorityOps = {
     .dequeue = HPFDequeue,
     .enqueue = HPFEnqueue,
+    .waitTimeGet = HPFWaitTimeGet,
     .wait = HPFWait,
     .wake = HPFWake,
     .schedParamModify = HPFSchedParamModify,
@@ -94,7 +96,7 @@ STATIC VOID HPFTimeSliceUpdate(SchedRunqueue *rq, LosTaskCB *taskCB, UINT64 curr
 
     if (sched->policy == LOS_SCHED_RR) {
         taskCB->timeSlice -= incTime;
-#ifdef LOSCFG_SCHED_DEBUG
+#ifdef LOSCFG_SCHED_HPF_DEBUG
         taskCB->schedStat.timeSliceRealTime += incTime;
 #endif
     }
@@ -107,7 +109,7 @@ STATIC VOID HPFTimeSliceUpdate(SchedRunqueue *rq, LosTaskCB *taskCB, UINT64 curr
         rq->schedFlag |= INT_PEND_RESCH;
     }
 
-#ifdef LOSCFG_SCHED_DEBUG
+#ifdef LOSCFG_SCHED_HPF_DEBUG
     taskCB->schedStat.allRuntime += incTime;
 #endif
 }
@@ -215,7 +217,7 @@ STATIC INLINE VOID PriQueInsert(HPFRunqueue *rq, LosTaskCB *taskCB)
                 sched->initTimeSlice = TimeSliceCalculate(rq, sched->basePrio, sched->priority);
                 taskCB->timeSlice = sched->initTimeSlice;
                 PriQueTailInsert(rq, sched->basePrio, &taskCB->pendList, sched->priority);
-#ifdef LOSCFG_SCHED_DEBUG
+#ifdef LOSCFG_SCHED_HPF_DEBUG
                 taskCB->schedStat.timeSliceTime = taskCB->schedStat.timeSliceRealTime;
                 taskCB->schedStat.timeSliceCount++;
 #endif
@@ -244,7 +246,7 @@ STATIC INLINE VOID PriQueInsert(HPFRunqueue *rq, LosTaskCB *taskCB)
 
 STATIC VOID HPFEnqueue(SchedRunqueue *rq, LosTaskCB *taskCB)
 {
-#ifdef LOSCFG_SCHED_DEBUG
+#ifdef LOSCFG_SCHED_HPF_DEBUG
     if (!(taskCB->taskStatus & OS_TASK_STATUS_RUNNING)) {
         taskCB->startTime = OsGetCurrSchedTimeCycle();
     }
@@ -301,6 +303,12 @@ STATIC UINT32 HPFDelay(LosTaskCB *runTask, UINT64 waitTime)
     return LOS_OK;
 }
 
+STATIC UINT64 HPFWaitTimeGet(LosTaskCB *taskCB)
+{
+    taskCB->waitTime += taskCB->startTime;
+    return taskCB->waitTime;
+}
+
 STATIC UINT32 HPFWait(LosTaskCB *runTask, LOS_DL_LIST *list, UINT32 ticks)
 {
     runTask->taskStatus |= OS_TASK_STATUS_PENDING;
@@ -333,7 +341,7 @@ STATIC VOID HPFWake(LosTaskCB *resumedTask)
     }
 
     if (!(resumedTask->taskStatus & OS_TASK_STATUS_SUSPENDED)) {
-#ifdef LOSCFG_SCHED_DEBUG
+#ifdef LOSCFG_SCHED_HPF_DEBUG
         resumedTask->schedStat.pendTime += OsGetCurrSchedTimeCycle() - resumedTask->startTime;
         resumedTask->schedStat.pendCount++;
 #endif
@@ -508,13 +516,13 @@ STATIC VOID HPFPriorityRestore(LosTaskCB *owner, const LOS_DL_LIST *list, const
 
 VOID HPFTaskSchedParamInit(LosTaskCB *taskCB, UINT16 policy,
                            const SchedParam *parentParam,
-                           const TSK_INIT_PARAM_S *param)
+                           const LosSchedParam *param)
 {
     SchedHPF *sched = (SchedHPF *)&taskCB->sp;
 
     sched->policy = policy;
     if (param != NULL) {
-        sched->priority = param->usTaskPrio;
+        sched->priority = param->priority;
     } else {
         sched->priority = parentParam->priority;
     }
diff --git a/kernel/base/sched/los_sched.c b/kernel/base/sched/los_sched.c
index d5def64756825d5dd4114610765351d1a3713946..10de1b7d54acffedea36bca9bc407d3f8ce9d489 100644
--- a/kernel/base/sched/los_sched.c
+++ b/kernel/base/sched/los_sched.c
@@ -102,15 +102,26 @@ VOID OsSchedExpireTimeUpdate(VOID)
 
 STATIC INLINE VOID SchedTimeoutTaskWake(SchedRunqueue *rq, UINT64 currTime, LosTaskCB *taskCB, BOOL *needSched)
 {
-#ifndef LOSCFG_SCHED_DEBUG
-    (VOID)currTime;
-#endif
-
     LOS_SpinLock(&g_taskSpin);
+    if (OsSchedPolicyIsEDF(taskCB)) {
+        SchedEDF *sched = (SchedEDF *)&taskCB->sp;
+        if (sched->finishTime <= currTime) {
+            if (taskCB->timeSlice >= 0) {
+                PrintExcInfo("EDF task: %u name: %s is timeout, timeout for %llu us.\n",
+                             taskCB->taskID, taskCB->taskName, OS_SYS_CYCLE_TO_US(currTime - sched->finishTime));
+            }
+            taskCB->timeSlice = 0;
+        }
+        if (sched->flags == EDF_WAIT_FOREVER) {
+            taskCB->taskStatus &= ~OS_TASK_STATUS_PEND_TIME;
+            sched->flags = EDF_UNUSED;
+        }
+    }
+
     UINT16 tempStatus = taskCB->taskStatus;
-    if (tempStatus & (OS_TASK_STATUS_PENDING | OS_TASK_STATUS_DELAY)) {
+    if (tempStatus & (OS_TASK_STATUS_PEND_TIME | OS_TASK_STATUS_DELAY)) {
         taskCB->taskStatus &= ~(OS_TASK_STATUS_PENDING | OS_TASK_STATUS_PEND_TIME | OS_TASK_STATUS_DELAY);
-        if (tempStatus & OS_TASK_STATUS_PENDING) {
+        if (tempStatus & OS_TASK_STATUS_PEND_TIME) {
             taskCB->taskStatus |= OS_TASK_STATUS_TIMEOUT;
             LOS_ListDelete(&taskCB->pendList);
             taskCB->taskMux = NULL;
@@ -118,7 +129,7 @@ STATIC INLINE VOID SchedTimeoutTaskWake(SchedRunqueue *rq, UINT64 currTime, LosT
         }
 
         if (!(tempStatus & OS_TASK_STATUS_SUSPENDED)) {
-#ifdef LOSCFG_SCHED_DEBUG
+#ifdef LOSCFG_SCHED_HPF_DEBUG
             taskCB->schedStat.pendTime += currTime - taskCB->startTime;
             taskCB->schedStat.pendCount++;
 #endif
@@ -212,8 +223,10 @@ VOID OsSchedRunqueueIdleInit(LosTaskCB *idleTask)
 
 UINT32 OsSchedInit(VOID)
 {
-    for (UINT16 cpuId = 0; cpuId < LOSCFG_KERNEL_CORE_NUM; cpuId++) {
-        HPFSchedPolicyInit(OsSchedRunqueueByID(cpuId));
+    for (UINT16 cpuid = 0; cpuid < LOSCFG_KERNEL_CORE_NUM; cpuid++) {
+        SchedRunqueue *rq = OsSchedRunqueueByID(cpuid);
+        EDFSchedPolicyInit(rq);
+        HPFSchedPolicyInit(rq);
     }
 
 #ifdef LOSCFG_SCHED_TICK_DEBUG
@@ -247,13 +260,15 @@ INT32 OsSchedParamCompare(const LosTaskCB *task1, const LosTaskCB *task2)
     return 0;
 }
 
-UINT32 OsSchedParamInit(LosTaskCB *taskCB, UINT16 policy, const SchedParam *parentParam, const TSK_INIT_PARAM_S *param)
+UINT32 OsSchedParamInit(LosTaskCB *taskCB, UINT16 policy, const SchedParam *parentParam, const LosSchedParam *param)
 {
     switch (policy) {
         case LOS_SCHED_FIFO:
         case LOS_SCHED_RR:
             HPFTaskSchedParamInit(taskCB, policy, parentParam, param);
             break;
+        case LOS_SCHED_DEADLINE:
+            return EDFTaskSchedParamInit(taskCB, policy, parentParam, param);
         case LOS_SCHED_IDLE:
             IdleTaskSchedParamInit(taskCB);
             break;
@@ -271,6 +286,9 @@ VOID OsSchedProcessDefaultSchedParamGet(UINT16 policy, SchedParam *param)
         case LOS_SCHED_RR:
             HPFProcessDefaultSchedParamGet(param);
             break;
+        case LOS_SCHED_DEADLINE:
+            EDFProcessDefaultSchedParamGet(param);
+            break;
         case LOS_SCHED_IDLE:
         default:
             PRINT_ERR("Invalid process-level scheduling policy, %u\n", policy);
@@ -281,12 +299,19 @@ VOID OsSchedProcessDefaultSchedParamGet(UINT16 policy, SchedParam *param)
 
 STATIC LosTaskCB *TopTaskGet(SchedRunqueue *rq)
 {
-    LosTaskCB *newTask = HPFRunqueueTopTaskGet(rq->hpfRunqueue);
+    LosTaskCB *newTask = EDFRunqueueTopTaskGet(rq->edfRunqueue);
+    if (newTask != NULL) {
+        goto FIND;
+    }
 
-    if (newTask == NULL) {
-        newTask = rq->idleTask;
+    newTask = HPFRunqueueTopTaskGet(rq->hpfRunqueue);
+    if (newTask != NULL) {
+        goto FIND;
     }
 
+    newTask = rq->idleTask;
+
+FIND:
     newTask->ops->start(rq, newTask);
     return newTask;
 }
@@ -387,7 +412,7 @@ STATIC VOID SchedTaskSwitch(SchedRunqueue *rq, LosTaskCB *runTask, LosTaskCB *ne
     OsCpupCycleEndStart(runTask, newTask);
 #endif
 
-#ifdef LOSCFG_SCHED_DEBUG
+#ifdef LOSCFG_SCHED_HPF_DEBUG
     UINT64 waitStartTime = newTask->startTime;
 #endif
     if (runTask->taskStatus & OS_TASK_STATUS_READY) {
@@ -400,14 +425,14 @@ STATIC VOID SchedTaskSwitch(SchedRunqueue *rq, LosTaskCB *runTask, LosTaskCB *ne
         runTask->ops->timeSliceUpdate(rq, runTask, newTask->startTime);
 
         if (runTask->taskStatus & (OS_TASK_STATUS_PEND_TIME | OS_TASK_STATUS_DELAY)) {
-            OsSchedTimeoutQueueAdd(runTask, runTask->startTime + runTask->waitTime);
+            OsSchedTimeoutQueueAdd(runTask, runTask->ops->waitTimeGet(runTask));
         }
     }
 
     UINT64 deadline = newTask->ops->deadlineGet(newTask);
     SchedNextExpireTimeSet(newTask->taskID, deadline, runTask->taskID);
 
-#ifdef LOSCFG_SCHED_DEBUG
+#ifdef LOSCFG_SCHED_HPF_DEBUG
     newTask->schedStat.waitSchedTime += newTask->startTime - waitStartTime;
     newTask->schedStat.waitSchedCount++;
     runTask->schedStat.runTime = runTask->schedStat.allRuntime;
diff --git a/kernel/base/sched/los_statistics.c b/kernel/base/sched/los_statistics.c
index 5332fa727b472c950ed4aa51e895405b87f6642e..8494bc6f6367b97d67e0444fb394fd19bab1e9e3 100644
--- a/kernel/base/sched/los_statistics.c
+++ b/kernel/base/sched/los_statistics.c
@@ -99,6 +99,7 @@ UINT32 OsShellShowTickResponse(VOID)
 }
 #endif
 
+#ifdef LOSCFG_SCHED_HPF_DEBUG
 STATIC VOID SchedDataGet(const LosTaskCB *taskCB, UINT64 *runTime, UINT64 *timeSlice,
                          UINT64 *pendTime, UINT64 *schedWait)
 {
@@ -128,6 +129,7 @@ UINT32 OsShellShowSchedStatistics(VOID)
     UINT32 taskLinkNum[LOSCFG_KERNEL_CORE_NUM];
     UINT32 intSave;
     LosTaskCB task;
+    SchedEDF *sched = NULL;
 
     SCHEDULER_LOCK(intSave);
     for (UINT16 cpu = 0; cpu < LOSCFG_KERNEL_CORE_NUM; cpu++) {
@@ -150,6 +152,12 @@ UINT32 OsShellShowSchedStatistics(VOID)
             continue;
         }
 
+        sched = (SchedEDF *)&taskCB->sp;
+        if (sched->policy == LOS_SCHED_DEADLINE) {
+            SCHEDULER_UNLOCK(intSave);
+            continue;
+        }
+
         (VOID)memcpy_s(&task, sizeof(LosTaskCB), taskCB, sizeof(LosTaskCB));
         SCHEDULER_UNLOCK(intSave);
 
@@ -170,3 +178,168 @@ UINT32 OsShellShowSchedStatistics(VOID)
 }
 #endif
 
+#ifdef LOSCFG_SCHED_EDF_DEBUG
+#define EDF_DEBUG_NODE 20
+typedef struct {
+    UINT32 tid;
+    INT32 runTimeUs;
+    UINT64 deadlineUs;
+    UINT64 periodUs;
+    UINT64 startTime;
+    UINT64 finishTime;
+    UINT64 nextfinishTime;
+    UINT64 timeSliceUnused;
+    UINT64 timeSliceRealTime;
+    UINT64 allRuntime;
+    UINT64 pendTime;
+} EDFDebug;
+
+STATIC EDFDebug g_edfNode[EDF_DEBUG_NODE];
+STATIC INT32 g_edfNodePointer = 0;
+
+VOID EDFDebugRecord(UINTPTR *task, UINT64 oldFinish)
+{
+    LosTaskCB *taskCB = (LosTaskCB *)task;
+    SchedEDF *sched = (SchedEDF *)&taskCB->sp;
+    SchedParam param;
+
+    // when print edf info, will stop record
+    if (g_edfNodePointer == (EDF_DEBUG_NODE + 1)) {
+        return;
+    }
+
+    taskCB->ops->schedParamGet(taskCB, &param);
+    g_edfNode[g_edfNodePointer].tid = taskCB->taskID;
+    g_edfNode[g_edfNodePointer].runTimeUs =param.runTimeUs;
+    g_edfNode[g_edfNodePointer].deadlineUs =param.deadlineUs;
+    g_edfNode[g_edfNodePointer].periodUs =param.periodUs;
+    g_edfNode[g_edfNodePointer].startTime = taskCB->startTime;
+    if (taskCB->timeSlice <= 0) {
+        taskCB->irqUsedTime = 0;
+        g_edfNode[g_edfNodePointer].timeSliceUnused = 0;
+    } else {
+        g_edfNode[g_edfNodePointer].timeSliceUnused = taskCB->timeSlice;
+    }
+    g_edfNode[g_edfNodePointer].finishTime = oldFinish;
+    g_edfNode[g_edfNodePointer].nextfinishTime = sched->finishTime;
+    g_edfNode[g_edfNodePointer].timeSliceRealTime = taskCB->schedStat.timeSliceRealTime;
+    g_edfNode[g_edfNodePointer].allRuntime = taskCB->schedStat.allRuntime;
+    g_edfNode[g_edfNodePointer].pendTime = taskCB->schedStat.pendTime;
+
+    g_edfNodePointer++;
+    if (g_edfNodePointer == EDF_DEBUG_NODE) {
+        g_edfNodePointer = 0;
+    }
+}
+
+STATIC VOID EDFInfoPrint(int idx)
+{
+    INT32 runTimeUs;
+    UINT64 deadlineUs;
+    UINT64 periodUs;
+    UINT64 startTime;
+    UINT64 timeSlice;
+    UINT64 finishTime;
+    UINT64 nextfinishTime;
+    UINT64 pendTime;
+    UINT64 allRuntime;
+    UINT64 timeSliceRealTime;
+    CHAR *status = NULL;
+
+    startTime = OS_SYS_CYCLE_TO_US(g_edfNode[idx].startTime);
+    timeSlice = OS_SYS_CYCLE_TO_US(g_edfNode[idx].timeSliceUnused);
+    finishTime = OS_SYS_CYCLE_TO_US(g_edfNode[idx].finishTime);
+    nextfinishTime = OS_SYS_CYCLE_TO_US(g_edfNode[idx].nextfinishTime);
+    pendTime = OS_SYS_CYCLE_TO_US(g_edfNode[idx].pendTime);
+    allRuntime = OS_SYS_CYCLE_TO_US(g_edfNode[idx].allRuntime);
+    timeSliceRealTime = OS_SYS_CYCLE_TO_US(g_edfNode[idx].timeSliceRealTime);
+    runTimeUs = g_edfNode[idx].runTimeUs;
+    deadlineUs = g_edfNode[idx].deadlineUs;
+    periodUs = g_edfNode[idx].periodUs;
+
+    if (timeSlice > 0) {
+        status = "TIMEOUT";
+    } else if (nextfinishTime == finishTime) {
+        status = "NEXT PERIOD";
+    } else {
+        status = "WAIT RUN";
+    }
+
+    PRINTK("%4u%9d%9llu%9llu%12llu%12llu%12llu%9llu%9llu%9llu%9llu %-12s\n",
+           g_edfNode[idx].tid, runTimeUs, deadlineUs, periodUs,
+           startTime, finishTime, nextfinishTime, allRuntime, timeSliceRealTime,
+           timeSlice, pendTime, status);
+}
+
+VOID OsEDFDebugPrint(VOID)
+{
+    INT32 max;
+    UINT32 intSave;
+    INT32 i;
+
+    SCHEDULER_LOCK(intSave);
+    max = g_edfNodePointer;
+    g_edfNodePointer = EDF_DEBUG_NODE + 1;
+    SCHEDULER_UNLOCK(intSave);
+
+    PRINTK("\r\nlast %d sched is: (in microsecond)\r\n", EDF_DEBUG_NODE);
+
+    PRINTK(" TID  RunTime Deadline   Period   StartTime   "
+           "CurPeriod  NextPeriod   AllRun  RealRun  TimeOut WaitTime Status\n");
+
+    for (i = max; i < EDF_DEBUG_NODE; i++) {
+        EDFInfoPrint(i);
+    }
+
+    for (i = 0; i < max; i++) {
+        EDFInfoPrint(i);
+    }
+
+    SCHEDULER_LOCK(intSave);
+    g_edfNodePointer = max;
+    SCHEDULER_UNLOCK(intSave);
+}
+
+UINT32 OsShellShowEdfSchedStatistics(VOID)
+{
+    UINT32 intSave;
+    LosTaskCB task;
+    UINT64 curTime;
+    UINT64 deadline;
+    UINT64 finishTime;
+    SchedEDF *sched = NULL;
+
+    PRINTK("Now Alive EDF Thread:\n");
+    PRINTK("TID        CurTime       DeadTime     FinishTime  taskName\n");
+
+    for (UINT32 tid = 0; tid < g_taskMaxNum; tid++) {
+        LosTaskCB *taskCB = g_taskCBArray + tid;
+        SCHEDULER_LOCK(intSave);
+        if (OsTaskIsUnused(taskCB)) {
+            SCHEDULER_UNLOCK(intSave);
+            continue;
+        }
+
+        sched = (SchedEDF *)&taskCB->sp;
+        if (sched->policy != LOS_SCHED_DEADLINE) {
+            SCHEDULER_UNLOCK(intSave);
+            continue;
+        }
+
+        (VOID)memcpy_s(&task, sizeof(LosTaskCB), taskCB, sizeof(LosTaskCB));
+
+        curTime = OS_SYS_CYCLE_TO_US(HalClockGetCycles());
+        finishTime = OS_SYS_CYCLE_TO_US(sched->finishTime);
+        deadline = OS_SYS_CYCLE_TO_US(taskCB->ops->deadlineGet(taskCB));
+        SCHEDULER_UNLOCK(intSave);
+
+        PRINTK("%3u%15llu%15llu%15llu  %-32s\n",
+               task.taskID, curTime, deadline, finishTime, task.taskName);
+    }
+
+    OsEDFDebugPrint();
+
+    return LOS_OK;
+}
+#endif
+#endif
diff --git a/kernel/include/los_process.h b/kernel/include/los_process.h
index ffb834a4bcf20ad1fd07985a4ec978635c6f17c4..af1a9e2eb9879dce62fb731d5266d071634f86d9 100644
--- a/kernel/include/los_process.h
+++ b/kernel/include/los_process.h
@@ -47,13 +47,13 @@
 
 extern INT32 LOS_Fork(UINT32 flags, const CHAR *name, const TSK_ENTRY_FUNC entry, UINT32 stackSize);
 
-extern INT32 LOS_SetProcessPriority(INT32 pid, UINT16 prio);
+extern INT32 LOS_SetProcessPriority(INT32 pid, INT32 prio);
 
 extern INT32 LOS_GetProcessPriority(INT32 pid);
 
-extern INT32 LOS_GetProcessScheduler(INT32 pid);
+extern INT32 LOS_GetProcessScheduler(INT32 pid, INT32 *policy, LosSchedParam *schedParam);
 
-extern INT32 LOS_SetProcessScheduler(INT32 pid, UINT16 policy, UINT16 prio);
+extern INT32 LOS_SetProcessScheduler(INT32 pid, UINT16 policy, const LosSchedParam *schedParam);
 
 extern UINT32 LOS_GetCurrProcessID(VOID);
 
diff --git a/kernel/include/los_task.h b/kernel/include/los_task.h
index 4cdda1f1096149d6c0a764a50cf8ee99f418f5fd..73c40eb34e94d5a9bc88984b3e02a220143c3da8 100644
--- a/kernel/include/los_task.h
+++ b/kernel/include/los_task.h
@@ -514,8 +514,21 @@ typedef struct tagTskInitParam {
     UINT16          consoleID;     /**< The console id of task belongs  */
     UINTPTR         processID;
     UserTaskParam   userParam;
+    /* edf parameters */
+    UINT32          runTimeUs;
+    UINT64          deadlineUs;
+    UINT64          periodUs;
 } TSK_INIT_PARAM_S;
 
+typedef struct {
+    union {
+        INT32 priority;
+        INT32 runTimeUs;
+    };
+    INT32 deadlineUs;
+    INT32 periodUs;
+} LosSchedParam;
+
 /**
  * @ingroup los_task
  * Task name length
diff --git a/syscall/los_syscall.h b/syscall/los_syscall.h
index e45fa9a1fbca06a67f26e9d05d508c3dbafe14ae..e2448a6bb6cc654cc4696ef2f3669e689a59a161 100644
--- a/syscall/los_syscall.h
+++ b/syscall/los_syscall.h
@@ -72,10 +72,10 @@ extern unsigned int SysGetGroupId(void);
 extern unsigned int SysGetTid(void);
 extern void SysSchedYield(int type);
 extern int SysSchedGetScheduler(int id, int flag);
-extern int SysSchedSetScheduler(int id, int policy, int prio, int flag);
-extern int SysSchedGetParam(int id, int flag);
-extern int SysSchedSetParam(int id, unsigned int prio, int flag);
-extern int SysSetProcessPriority(int which, int who, unsigned int prio);
+extern int SysSchedSetScheduler(int id, int policy, const LosSchedParam *userParam, int flag);
+extern int SysSchedGetParam(int id, LosSchedParam *userParam, int flag);
+extern int SysSchedSetParam(int id, const LosSchedParam *userParam, int flag);
+extern int SysSetProcessPriority(int which, int who, int prio);
 extern int SysGetProcessPriority(int which, int who);
 extern int SysSchedGetPriorityMin(int policy);
 extern int SysSchedGetPriorityMax(int policy);
diff --git a/syscall/process_syscall.c b/syscall/process_syscall.c
index 3217b8dd0f3f4b7efc3d11114f5ef087a5afecf7..48c5f81791cfe3f8682a5c2f8ad5d1fddfa6e041 100644
--- a/syscall/process_syscall.c
+++ b/syscall/process_syscall.c
@@ -60,23 +60,44 @@ static int OsPermissionToCheck(unsigned int pid, unsigned int who)
     return 0;
 }
 
-static int OsUserTaskSchedulerSet(unsigned int tid, unsigned short policy, unsigned short priority, bool policyFlag)
+static int UserTaskSchedulerCheck(unsigned int tid, int policy, const LosSchedParam *schedParam, bool policyFlag)
 {
     int ret;
-    unsigned int intSave;
-    bool needSched = false;
-    SchedParam param = { 0 };
+    int processPolicy;
 
     if (OS_TID_CHECK_INVALID(tid)) {
         return EINVAL;
     }
 
-    if (priority > OS_TASK_PRIORITY_LOWEST) {
-        return EINVAL;
+    ret = OsSchedulerParamCheck(policy, TRUE, schedParam);
+    if (ret != 0) {
+        return ret;
     }
 
-    if ((policy != LOS_SCHED_FIFO) && (policy != LOS_SCHED_RR)) {
-        return EINVAL;
+    if (policyFlag) {
+        ret = LOS_GetProcessScheduler(LOS_GetCurrProcessID(), &processPolicy, NULL);
+        if (ret < 0) {
+            return -ret;
+        }
+        if ((processPolicy != LOS_SCHED_DEADLINE) && (policy == LOS_SCHED_DEADLINE)) {
+            return EPERM;
+        } else if ((processPolicy == LOS_SCHED_DEADLINE) && (policy != LOS_SCHED_DEADLINE)) {
+            return EPERM;
+        }
+    }
+    return 0;
+}
+
+static int OsUserTaskSchedulerSet(unsigned int tid, int policy, const LosSchedParam *schedParam, bool policyFlag)
+{
+    int ret;
+    unsigned int intSave;
+    bool needSched = false;
+    SchedParam param = { 0 };
+
+    ret = UserTaskSchedulerCheck(tid, policy, schedParam, policyFlag);
+    if (ret != 0) {
+        return ret;
     }
 
     LosTaskCB *taskCB = OS_TCB_FROM_TID(tid);
@@ -88,8 +109,22 @@ static int OsUserTaskSchedulerSet(unsigned int tid, unsigned short policy, unsig
     }
 
     taskCB->ops->schedParamGet(taskCB, &param);
-    param.policy = (policyFlag == true) ? policy : param.policy;
-    param.priority = priority;
+    param.policy = (policyFlag == true) ? (UINT16)policy : param.policy;
+    if ((param.policy == LOS_SCHED_RR) || (param.policy == LOS_SCHED_FIFO)) {
+        param.priority = schedParam->priority;
+    } else if (param.policy == LOS_SCHED_DEADLINE) {
+#ifdef LOSCFG_SECURITY_CAPABILITY
+        /* user mode process with privilege of CAP_SCHED_SETPRIORITY can change the priority */
+        if (!IsCapPermit(CAP_SCHED_SETPRIORITY)) {
+            SCHEDULER_UNLOCK(intSave);
+            return EPERM;
+        }
+#endif
+        param.runTimeUs = schedParam->runTimeUs;
+        param.deadlineUs = schedParam->deadlineUs;
+        param.periodUs = schedParam->periodUs;
+    }
+
     needSched = taskCB->ops->schedParamModify(taskCB, &param);
     SCHEDULER_UNLOCK(intSave);
 
@@ -113,6 +148,7 @@ int SysSchedGetScheduler(int id, int flag)
 {
     unsigned int intSave;
     SchedParam param = { 0 };
+    int policy;
     int ret;
 
     if (flag < 0) {
@@ -137,43 +173,57 @@ int SysSchedGetScheduler(int id, int flag)
         id = (int)LOS_GetCurrProcessID();
     }
 
-    return LOS_GetProcessScheduler(id);
+    ret = LOS_GetProcessScheduler(id, &policy, NULL);
+    if (ret < 0) {
+        return ret;
+    }
+
+    return policy;
 }
 
-int SysSchedSetScheduler(int id, int policy, int prio, int flag)
+int SysSchedSetScheduler(int id, int policy, const LosSchedParam *userParam, int flag)
 {
     int ret;
+    LosSchedParam param;
+
+    if (LOS_ArchCopyFromUser(&param, userParam, sizeof(LosSchedParam)) != 0) {
+        return -EFAULT;
+    }
 
     if (flag < 0) {
-        return -OsUserTaskSchedulerSet(id, policy, prio, true);
+        return -OsUserTaskSchedulerSet(id, policy, &param, true);
     }
 
-    if (prio < OS_USER_PROCESS_PRIORITY_HIGHEST) {
-        return -EINVAL;
+    if (policy == LOS_SCHED_RR) {
+#ifdef LOSCFG_KERNEL_PLIMITS
+        if (param.priority < OsPidLimitGetPriorityLimit()) {
+            return -EINVAL;
+        }
+#else
+        if (param.priority < OS_USER_PROCESS_PRIORITY_HIGHEST) {
+            return -EINVAL;
+        }
+#endif
     }
 
     if (id == 0) {
         id = (int)LOS_GetCurrProcessID();
     }
 
-#ifdef LOSCFG_KERNEL_PLIMITS
-    if (prio < OsPidLimitGetPriorityLimit()) {
-        return -EINVAL;
-    }
-#endif
-
     ret = OsPermissionToCheck(id, LOS_GetCurrProcessID());
     if (ret < 0) {
         return ret;
     }
 
-    return OsSetProcessScheduler(LOS_PRIO_PROCESS, id, prio, policy);
+    return OsSetProcessScheduler(LOS_PRIO_PROCESS, id, policy, &param);
 }
 
-int SysSchedGetParam(int id, int flag)
+int SysSchedGetParam(int id, LosSchedParam *userParam, int flag)
 {
+    LosSchedParam schedParam = {0};
     SchedParam param = { 0 };
     unsigned int intSave;
+    int ret;
 
     if (flag < 0) {
         if (OS_TID_CHECK_INVALID(id)) {
@@ -182,7 +232,7 @@ int SysSchedGetParam(int id, int flag)
 
         LosTaskCB *taskCB = OS_TCB_FROM_TID(id);
         SCHEDULER_LOCK(intSave);
-        int ret = OsUserTaskOperatePermissionsCheck(taskCB);
+        ret = OsUserTaskOperatePermissionsCheck(taskCB);
         if (ret != LOS_OK) {
             SCHEDULER_UNLOCK(intSave);
             return -ret;
@@ -190,25 +240,39 @@ int SysSchedGetParam(int id, int flag)
 
         taskCB->ops->schedParamGet(taskCB, &param);
         SCHEDULER_UNLOCK(intSave);
-        return (int)param.priority;
-    }
+        if (param.policy == LOS_SCHED_DEADLINE) {
+            schedParam.runTimeUs = param.runTimeUs;
+            schedParam.deadlineUs = param.deadlineUs;
+            schedParam.periodUs = param.periodUs;
+        } else {
+            schedParam.priority = param.priority;
+        }
+    } else {
+        if (id == 0) {
+            id = (int)LOS_GetCurrProcessID();
+        }
 
-    if (id == 0) {
-        id = (int)LOS_GetCurrProcessID();
-    }
+        if (OS_PID_CHECK_INVALID(id)) {
+            return -EINVAL;
+        }
 
-    if (OS_PID_CHECK_INVALID(id)) {
-        return -EINVAL;
+        ret = LOS_GetProcessScheduler(id, NULL, &schedParam);
+        if (ret < 0) {
+            return ret;
+        }
     }
 
-    return OsGetProcessPriority(LOS_PRIO_PROCESS, id);
+    if (LOS_ArchCopyToUser(userParam, &schedParam, sizeof(LosSchedParam))) {
+        return -EFAULT;
+    }
+    return 0;
 }
 
-int SysSetProcessPriority(int which, int who, unsigned int prio)
+int SysSetProcessPriority(int which, int who, int prio)
 {
     int ret;
 
-    if (prio < OS_USER_PROCESS_PRIORITY_HIGHEST) {
+    if (which != LOS_PRIO_PROCESS) {
         return -EINVAL;
     }
 
@@ -220,6 +284,10 @@ int SysSetProcessPriority(int which, int who, unsigned int prio)
     if (prio < OsPidLimitGetPriorityLimit()) {
         return -EINVAL;
     }
+#else
+    if (prio < OS_USER_PROCESS_PRIORITY_HIGHEST) {
+        return -EINVAL;
+    }
 #endif
 
     ret = OsPermissionToCheck(who, LOS_GetCurrProcessID());
@@ -227,22 +295,31 @@ int SysSetProcessPriority(int which, int who, unsigned int prio)
         return ret;
     }
 
-    return OsSetProcessScheduler(which, who, prio, LOS_GetProcessScheduler(who));
+    return LOS_SetProcessPriority(who, prio);
 }
 
-int SysSchedSetParam(int id, unsigned int prio, int flag)
+int SysSchedSetParam(int id, const LosSchedParam *userParam, int flag)
 {
+    int ret, policy;
+    LosSchedParam param;
+
     if (flag < 0) {
-        return -OsUserTaskSchedulerSet(id, LOS_SCHED_RR, prio, false);
+        if (LOS_ArchCopyFromUser(&param, userParam, sizeof(LosSchedParam)) != 0) {
+            return -EFAULT;
+        }
+        return -OsUserTaskSchedulerSet(id, LOS_SCHED_RR, &param, false);
     }
 
-#ifdef LOSCFG_KERNEL_PLIMITS
-    if (prio < OsPidLimitGetPriorityLimit()) {
-        return -EINVAL;
+    if (id == 0) {
+        id = (int)LOS_GetCurrProcessID();
+    }
+
+    ret = LOS_GetProcessScheduler(id, &policy, NULL);
+    if (ret < 0) {
+        return ret;
     }
-#endif
 
-    return SysSetProcessPriority(LOS_PRIO_PROCESS, id, prio);
+    return SysSchedSetScheduler(id, policy, userParam, flag);
 }
 
 int SysGetProcessPriority(int which, int who)
diff --git a/syscall/syscall_lookup.h b/syscall/syscall_lookup.h
index 53282ffa95779784a4b180ae52fa3522f8a32fb6..cb9c773c33c8b197de6ce34066c1376801149936 100644
--- a/syscall/syscall_lookup.h
+++ b/syscall/syscall_lookup.h
@@ -169,7 +169,7 @@ SYSCALL_HAND_DEF(__NR_sethostname, SysSetHostName, int, ARG_NUM_2)
 SYSCALL_HAND_DEF(__NR_mprotect, SysMprotect, int, ARG_NUM_3)
 SYSCALL_HAND_DEF(__NR_getpgid, SysGetProcessGroupID, int, ARG_NUM_1)
 SYSCALL_HAND_DEF(__NR_sched_setparam, SysSchedSetParam, int, ARG_NUM_3)
-SYSCALL_HAND_DEF(__NR_sched_getparam, SysSchedGetParam, int, ARG_NUM_2)
+SYSCALL_HAND_DEF(__NR_sched_getparam, SysSchedGetParam, int, ARG_NUM_3)
 SYSCALL_HAND_DEF(__NR_sched_setscheduler, SysSchedSetScheduler, int, ARG_NUM_4)
 SYSCALL_HAND_DEF(__NR_sched_getscheduler, SysSchedGetScheduler, int, ARG_NUM_2)
 SYSCALL_HAND_DEF(__NR_sched_yield, SysSchedYield, void, ARG_NUM_1)
diff --git a/testsuites/unittest/net/socket/smoke/net_socket_test_011.cpp b/testsuites/unittest/net/socket/smoke/net_socket_test_011.cpp
index a6e428756b06d5eee4732920723ea3bfc890b1e7..0cceb863add7fb5c5f35660d31acc1b2b839f2f3 100644
--- a/testsuites/unittest/net/socket/smoke/net_socket_test_011.cpp
+++ b/testsuites/unittest/net/socket/smoke/net_socket_test_011.cpp
@@ -181,6 +181,9 @@ static int StartClients(pthread_t *cli, int cliNum)
     for (int i = 0; i < cliNum; ++i) {
         ret = pthread_attr_init(&attr);
         param.sched_priority = param.sched_priority + 1;
+        if (param.sched_priority > 31) {    /* 31: prio */
+            param.sched_priority = 31;  /* 31: prio */
+        }
         pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED);
         pthread_attr_setschedparam(&attr, &param);
 
diff --git a/testsuites/unittest/process/basic/process/smoke/process_test_001.cpp b/testsuites/unittest/process/basic/process/smoke/process_test_001.cpp
index 2900a1e10d9da966025d9c12889d16e73f1be5a6..104257079cacdea777e2b146974c6ce12bcbef5d 100644
--- a/testsuites/unittest/process/basic/process/smoke/process_test_001.cpp
+++ b/testsuites/unittest/process/basic/process/smoke/process_test_001.cpp
@@ -30,7 +30,7 @@
  */
 
 #include "it_test_process.h"
- 
+
 static const int PROCESS_PRIORITY_MAX = 10;
 static const int PROCESS_PRIORITY_MIN = 31;
 static const int PROCESS_SCHED_RR_INTERVAL = 20000000;
diff --git a/testsuites/unittest/process/basic/process/smoke/process_test_008.cpp b/testsuites/unittest/process/basic/process/smoke/process_test_008.cpp
index 6ba8beaafc2cdd55f259397e0eb8c329027f5947..8dc7b18bcc838b4e697693ed2072197cbcfbad21 100644
--- a/testsuites/unittest/process/basic/process/smoke/process_test_008.cpp
+++ b/testsuites/unittest/process/basic/process/smoke/process_test_008.cpp
@@ -66,7 +66,7 @@ static int ProcessTest001(void)
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
     ret = pthread_attr_init(&a);
-    param.sched_priority += 1;
+    param.sched_priority = 26;  /* 26: prio */
     pthread_attr_setschedparam(&a, &param);
     pthread_attr_setinheritsched(&a, PTHREAD_EXPLICIT_SCHED);
     ret = pthread_create(&newPthread, &a, ThreadFunc3, &data);
diff --git a/testsuites/unittest/process/basic/pthread/config.gni b/testsuites/unittest/process/basic/pthread/config.gni
index 1dbba3ebb7fce2930433fbd0dd1ea78c4c795d7e..6b3265654b0eabdda7f4c894e67c189488e327e8 100644
--- a/testsuites/unittest/process/basic/pthread/config.gni
+++ b/testsuites/unittest/process/basic/pthread/config.gni
@@ -55,6 +55,14 @@ pthread_sources_smoke = [
   "$TEST_UNITTEST_DIR/process/basic/pthread/smoke/pthread_test_017.cpp",
   "$TEST_UNITTEST_DIR/process/basic/pthread/smoke/pthread_test_018.cpp",
   "$TEST_UNITTEST_DIR/process/basic/pthread/smoke/pthread_test_019.cpp",
+  "$TEST_UNITTEST_DIR/process/basic/pthread/smoke/pthread_test_020.cpp",
+  "$TEST_UNITTEST_DIR/process/basic/pthread/smoke/pthread_test_021.cpp",
+  "$TEST_UNITTEST_DIR/process/basic/pthread/smoke/pthread_test_022.cpp",
+  "$TEST_UNITTEST_DIR/process/basic/pthread/smoke/pthread_test_023.cpp",
+  "$TEST_UNITTEST_DIR/process/basic/pthread/smoke/pthread_test_024.cpp",
+  "$TEST_UNITTEST_DIR/process/basic/pthread/smoke/pthread_test_025.cpp",
+  "$TEST_UNITTEST_DIR/process/basic/pthread/smoke/pthread_test_026.cpp",
+  "$TEST_UNITTEST_DIR/process/basic/pthread/smoke/pthread_test_027.cpp",
 ]
 
 pthread_sources_full = [
diff --git a/testsuites/unittest/process/basic/pthread/it_pthread_test.h b/testsuites/unittest/process/basic/pthread/it_pthread_test.h
index 4b4391664baf65240090de9ab99d5cf5a263e95b..afcef819e96d00ad3a9ca7196f3840a5e11aea45 100644
--- a/testsuites/unittest/process/basic/pthread/it_pthread_test.h
+++ b/testsuites/unittest/process/basic/pthread/it_pthread_test.h
@@ -74,6 +74,14 @@ extern void ItTestPthread016(void);
 extern void ItTestPthread017(void);
 extern void ItTestPthread018(void);
 extern void ItTestPthread019(void);
+extern void ItTestPthread020(void);
+extern void ItTestPthread021(void);
+extern void ItTestPthread022(void);
+extern void ItTestPthread023(void);
+extern void ItTestPthread024(void);
+extern void ItTestPthread025(void);
+extern void ItTestPthread026(void);
+extern void ItTestPthread027(void);
 extern void ItTestPthreadAtfork001(void);
 extern void ItTestPthreadAtfork002(void);
 extern void ItTestPthreadOnce001(void);
diff --git a/testsuites/unittest/process/basic/pthread/process_pthread_test.cpp b/testsuites/unittest/process/basic/pthread/process_pthread_test.cpp
index 700bcbac7d8533a21bab8155003533931d284ffd..3c2187c355854d9016338512907ee6412b483200 100644
--- a/testsuites/unittest/process/basic/pthread/process_pthread_test.cpp
+++ b/testsuites/unittest/process/basic/pthread/process_pthread_test.cpp
@@ -186,6 +186,104 @@ HWTEST_F(ProcessPthreadTest, ItTestPthread019, TestSize.Level0)
     ItTestPthread019();
 }
 
+/* *
+ * @tc.name: it_test_pthread_020
+ * @tc.desc: function for ProcessPthreadTest
+ * @tc.type: FUNC
+ * @tc.require: issueI6T3P3
+ * @tc.author:
+ */
+HWTEST_F(ProcessPthreadTest, ItTestPthread020, TestSize.Level0)
+{
+    ItTestPthread020();
+}
+
+/* *
+ * @tc.name: it_test_pthread_021
+ * @tc.desc: function for ProcessPthreadTest
+ * @tc.type: FUNC
+ * @tc.require: issueI6T3P3
+ * @tc.author:
+ */
+HWTEST_F(ProcessPthreadTest, ItTestPthread021, TestSize.Level0)
+{
+    ItTestPthread021();
+}
+
+/* *
+ * @tc.name: it_test_pthread_022
+ * @tc.desc: function for ProcessPthreadTest
+ * @tc.type: FUNC
+ * @tc.require: issueI6T3P3
+ * @tc.author:
+ */
+HWTEST_F(ProcessPthreadTest, ItTestPthread022, TestSize.Level0)
+{
+    ItTestPthread022();
+}
+
+/* *
+ * @tc.name: it_test_pthread_024
+ * @tc.desc: function for ProcessPthreadTest
+ * @tc.type: FUNC
+ * @tc.require: issueI6T3P3
+ * @tc.author:
+ */
+HWTEST_F(ProcessPthreadTest, ItTestPthread024, TestSize.Level0)
+{
+    ItTestPthread024();
+}
+
+/* *
+ * @tc.name: it_test_pthread_026
+ * @tc.desc: function for ProcessPthreadTest
+ * @tc.type: FUNC
+ * @tc.require: issueI6T3P3
+ * @tc.author:
+ */
+HWTEST_F(ProcessPthreadTest, ItTestPthread026, TestSize.Level0)
+{
+    ItTestPthread026();
+}
+
+/* *
+ * @tc.name: it_test_pthread_027
+ * @tc.desc: function for ProcessPthreadTest
+ * @tc.type: FUNC
+ * @tc.require: issueI6T3P3
+ * @tc.author:
+ */
+HWTEST_F(ProcessPthreadTest, ItTestPthread027, TestSize.Level0)
+{
+    ItTestPthread027();
+}
+
+
+/* *
+ * @tc.name: it_test_pthread_023
+ * @tc.desc: function for ProcessPthreadTest
+ * @tc.type: FUNC
+ * @tc.require: issueI6T3P3
+ * @tc.author:
+ */
+HWTEST_F(ProcessPthreadTest, ItTestPthread023, TestSize.Level0)
+{
+    ItTestPthread023();
+}
+
+
+/* *
+ * @tc.name: it_test_pthread_025
+ * @tc.desc: function for ProcessPthreadTest
+ * @tc.type: FUNC
+ * @tc.require: issueI6T3P3
+ * @tc.author:
+ */
+HWTEST_F(ProcessPthreadTest, ItTestPthread025, TestSize.Level0)
+{
+    ItTestPthread025();
+}
+
 /* *
  * @tc.name: it_test_pthread_017
  * @tc.desc: function for ProcessPthreadTest
diff --git a/testsuites/unittest/process/basic/pthread/smoke/pthread_test_020.cpp b/testsuites/unittest/process/basic/pthread/smoke/pthread_test_020.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..904d64f6865373618a8200138738c2d2da2ea583
--- /dev/null
+++ b/testsuites/unittest/process/basic/pthread/smoke/pthread_test_020.cpp
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "it_pthread_test.h"
+
+static int ChildProcess(void)
+{
+    int ret, currPolicy = 0;
+    volatile unsigned int count = 0;
+    struct sched_param currSchedParam = { 0 };
+    struct sched_param param = {
+        .sched_deadline = 4000000,  /* 4000000, 4s */
+        .sched_runtime = 200000,    /* 200000, 200ms */
+        .sched_period = 5000000,    /* 5000000, 5s */
+    };
+
+    ret = sched_getparam(getpid(), &currSchedParam);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+
+    currPolicy = sched_getscheduler(getpid());
+    ICUNIT_ASSERT_EQUAL(currPolicy, SCHED_RR, LOS_NOK);
+    currSchedParam.sched_runtime = 0;
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_deadline, 0, LOS_NOK);
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_runtime, 0, LOS_NOK);
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_period, 0, LOS_NOK);
+
+    ret = sched_setscheduler(getpid(), SCHED_DEADLINE, &param);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+
+    currPolicy = sched_getscheduler(getpid());
+    ICUNIT_ASSERT_EQUAL(currPolicy, SCHED_DEADLINE, LOS_NOK);
+
+    ret = sched_getparam(getpid(), &currSchedParam);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_deadline, 4000000, LOS_NOK);    /* 4000000, 4s */
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_runtime, 200000, LOS_NOK);      /* 200000, 200ms */
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_period, 5000000, LOS_NOK);      /* 5000000, 5s */
+
+    printf("--- 1 edf thread start ---\n\r");
+    do {
+        for (volatile int i = 0; i < 100000; i++) { /* 100000, no special meaning */
+            for (volatile int j = 0; j < 10; j++) { /* 10, no special meaning */
+                int tmp = i - j;
+            }
+        }
+        if (count % 20 == 0) {  /* 20, no special meaning */
+            printf("--- 2 edf thread running ---\n\r");
+        }
+        count++;
+    } while (count <= 100); /* 100, no special meaning */
+    printf("--- 3 edf thread end ---\n\r");
+
+    return 0;
+}
+
+static int TestCase(void)
+{
+    int ret, pid, status;
+
+    pid = fork();
+    if (pid == 0) {
+        ret = ChildProcess();
+        if (ret != 0) {
+            exit(-1);
+        }
+        exit(0);
+    } else if (pid > 0) {
+        waitpid(pid, &status, 0);
+    } else {
+        exit(__LINE__);
+    }
+
+    return WEXITSTATUS(status) == 0 ? 0 : -1;
+}
+
+void ItTestPthread020(void)
+{
+    TEST_ADD_CASE("IT_POSIX_PTHREAD_020", TestCase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
+}
diff --git a/testsuites/unittest/process/basic/pthread/smoke/pthread_test_021.cpp b/testsuites/unittest/process/basic/pthread/smoke/pthread_test_021.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..063168f30cd557d94f43458e563d6daed25c02de
--- /dev/null
+++ b/testsuites/unittest/process/basic/pthread/smoke/pthread_test_021.cpp
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "it_pthread_test.h"
+
+static void *ThreadFuncTest(void *args)
+{
+    int pt = (int)args;
+    int ret,  currPolicy;
+    struct sched_param currSchedParam;
+    volatile unsigned int count = 0;
+    int currTID = Syscall(SYS_gettid, 0, 0, 0, 0);
+
+    ret = pthread_getschedparam(pthread_self(), & currPolicy, &currSchedParam);
+    ICUNIT_GOTO_EQUAL(ret, 0, LOS_NOK, EXIT);
+    ICUNIT_GOTO_EQUAL( currPolicy, SCHED_DEADLINE, LOS_NOK, EXIT);
+    ICUNIT_GOTO_EQUAL(currSchedParam.sched_deadline, 3000000, LOS_NOK, EXIT);    /* 3000000, 3s */
+    ICUNIT_GOTO_EQUAL(currSchedParam.sched_runtime, 200000, LOS_NOK, EXIT);      /* 200000, 200ms */
+    ICUNIT_GOTO_EQUAL(currSchedParam.sched_period, 5000000, LOS_NOK, EXIT);      /* 5000000, 5s */
+
+    printf("--- 1 edf Tid[%d] PTid[%d] thread start ---\n\r", currTID, pt);
+    do {
+        for (volatile int i = 0; i < 100000; i++) { /* 100000, no special meaning */
+            for (volatile int j = 0; j < 5; j++) { /* 5, no special meaning */
+                volatile int tmp = i - j;
+            }
+        }
+        if (count % 20 == 0) {  /* 20, no special meaning */
+            printf("--- 2 edf Tid[%d] PTid[%d] thread running ---\n\r", currTID, pt);
+        }
+        count++;
+    } while (count <= 100); /* 100, no special meaning */
+    printf("--- 3 edf Tid[%d] PTid[%d] thread end ---\n\r", currTID, pt);
+
+    ret = LOS_OK;
+    return (void *)(&ret);
+EXIT:
+    ret = LOS_NOK;
+    return (void *)(&ret);
+}
+
+static int ChildProcess(void)
+{
+    int *childThreadRetval = nullptr;
+    pthread_t newUserThread;
+    int ret,  currPolicy = 0;
+    volatile unsigned int count = 0;
+    struct sched_param currSchedParam = { 0 };
+    int currTID = Syscall(SYS_gettid, 0, 0, 0, 0);
+    struct sched_param param = {
+        .sched_deadline = 3000000,  /* 3000000, 3s */
+        .sched_runtime = 200000,    /* 200000, 200ms */
+        .sched_period = 5000000,    /* 5000000, 5s */
+    };
+
+    ret = sched_setscheduler(getpid(), SCHED_DEADLINE, &param);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+
+    ret = pthread_getschedparam(pthread_self(), & currPolicy, &currSchedParam);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+    ICUNIT_ASSERT_EQUAL(currPolicy, SCHED_DEADLINE, LOS_NOK);
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_deadline, 3000000, LOS_NOK);    /* 3000000, 3s */
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_runtime, 200000, LOS_NOK);      /* 200000, 200ms */
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_period, 5000000, LOS_NOK);      /* 5000000, 5s */
+
+    ret = pthread_create(&newUserThread, NULL, ThreadFuncTest, (void *)currTID);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+
+    printf("--- 1 edf Tid[%d] thread start ---\n\r", currTID);
+    do {
+        for (volatile int i = 0; i < 100000; i++) { /* 100000, no special meaning */
+            for (volatile int j = 0; j < 5; j++) { /* 5, no special meaning */
+                int tmp = i - j;
+            }
+        }
+        if (count % 20 == 0) {  /* 20, no special meaning */
+            printf("--- 2 edf Tid[%d] thread running ---\n\r", currTID);
+        }
+        count++;
+    } while (count <= 100); /* 100, no special meaning */
+    printf("--- 3 edf Tid[%d] thread end ---\n\r", currTID);
+
+    ret = pthread_join(newUserThread, (void **)&childThreadRetval);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+    ICUNIT_ASSERT_EQUAL(*childThreadRetval, 0, *childThreadRetval);
+
+    return 0;
+}
+
+static int TestCase(void)
+{
+    int ret, pid, status;
+
+    pid = fork();
+    if (pid == 0) {
+        ret = ChildProcess();
+        if (ret != 0) {
+            exit(-1);
+        }
+        exit(0);
+    } else if (pid > 0) {
+        waitpid(pid, &status, 0);
+    } else {
+        exit(__LINE__);
+    }
+
+    return WEXITSTATUS(status) == 0 ? 0 : -1;
+}
+
+void ItTestPthread021(void)
+{
+    TEST_ADD_CASE("IT_POSIX_PTHREAD_021", TestCase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
+}
diff --git a/testsuites/unittest/process/basic/pthread/smoke/pthread_test_022.cpp b/testsuites/unittest/process/basic/pthread/smoke/pthread_test_022.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..90624467658bfa46bf888217443cc84495303891
--- /dev/null
+++ b/testsuites/unittest/process/basic/pthread/smoke/pthread_test_022.cpp
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "it_pthread_test.h"
+
+static int EdfProcess(void)
+{
+    int ret;
+    int currPolicy = 0;
+    struct sched_param currSchedParam = { 0 };
+    volatile unsigned int count = 0;
+    int currTID = Syscall(SYS_gettid, 0, 0, 0, 0);
+
+    ret = pthread_getschedparam(pthread_self(), &currPolicy, &currSchedParam);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+    ICUNIT_ASSERT_EQUAL(currPolicy, SCHED_DEADLINE, LOS_NOK);
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_deadline, 3000000, LOS_NOK);    /* 3000000, 3s */
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_runtime, 200000, LOS_NOK);      /* 200000, 200ms */
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_period, 5000000, LOS_NOK);      /* 5000000, 5s */
+
+    printf("--- edf2 -- 1 -- Tid[%d] thread start ---\n\r", currTID);
+    do {
+        for (volatile int i = 0; i < 100000; i++) { /* 100000, no special meaning */
+            for (volatile int j = 0; j < 5; j++) { /* 5, no special meaning */
+                int tmp = i - j;
+            }
+        }
+        if (count % 20 == 0) {  /* 20, no special meaning */
+            printf("--- edf2 -- 2 -- Tid[%d] thread running ---\n\r", currTID);
+        }
+        count++;
+    } while (count <= 100); /* 100, no special meaning */
+    printf("--- edf2 -- 3 -- Tid[%d] thread end ---\n\r", currTID);
+
+    return 0;
+}
+
+static int ChildProcess(void)
+{
+    int *childThreadRetval = nullptr;
+    pthread_t newUserThread;
+    int pid, status, ret;
+    int currPolicy = 0;
+    volatile unsigned int count = 0;
+    struct sched_param currSchedParam = { 0 };
+    int currTID = Syscall(SYS_gettid, 0, 0, 0, 0);
+    struct sched_param param = {
+        .sched_deadline = 3000000,  /* 3000000, 3s */
+        .sched_runtime = 200000,    /* 200000, 200ms */
+        .sched_period = 5000000,    /* 5000000, 5s */
+    };
+
+    ret = sched_setscheduler(getpid(), SCHED_DEADLINE, &param);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+
+    ret = pthread_getschedparam(pthread_self(), &currPolicy, &currSchedParam);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+    ICUNIT_ASSERT_EQUAL(currPolicy, SCHED_DEADLINE, LOS_NOK);
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_deadline, 3000000, LOS_NOK);    /* 3000000, 3s */
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_runtime, 200000, LOS_NOK);      /* 200000, 200ms */
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_period, 5000000, LOS_NOK);      /* 5000000, 5s */
+
+    pid = fork();
+    if (pid == 0) {
+        ret = EdfProcess();
+        if (ret != 0) {
+            exit(-1);
+        }
+        exit(0);
+    } else if (pid > 0) {
+        printf("--- edf1 -- 1 -- Tid[%d] thread start ---\n\r", currTID);
+        do {
+            for (volatile int i = 0; i < 500000; i++) { /* 500000, no special meaning */
+                    int tmp = i + 1;
+            }
+            if (count % 20 == 0) {  /* 20, no special meaning */
+                printf("--- edf1 -- 2 -- Tid[%d] thread running ---\n\r", currTID);
+            }
+            count++;
+        } while (count <= 100); /* 100, no special meaning */
+        printf("--- edf1 -- 3 -- Tid[%d] thread end ---\n\r", currTID);
+        waitpid(pid, &status, 0);
+    } else {
+        exit(__LINE__);
+    }
+
+    return WEXITSTATUS(status) == 0 ? 0 : -1;
+}
+
+static int TestCase(void)
+{
+    int ret, pid, status;
+
+    pid = fork();
+    if (pid == 0) {
+        ret = ChildProcess();
+        if (ret != 0) {
+            exit(-1);
+        }
+        exit(0);
+    } else if (pid > 0) {
+        waitpid(pid, &status, 0);
+    } else {
+        exit(__LINE__);
+    }
+
+    return WEXITSTATUS(status) == 0 ? 0 : -1;
+}
+
+void ItTestPthread022(void)
+{
+    TEST_ADD_CASE("IT_POSIX_PTHREAD_022", TestCase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
+}
diff --git a/testsuites/unittest/process/basic/pthread/smoke/pthread_test_023.cpp b/testsuites/unittest/process/basic/pthread/smoke/pthread_test_023.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..9b6572d61dae42fda455d5b77951ce8f0e81d6e4
--- /dev/null
+++ b/testsuites/unittest/process/basic/pthread/smoke/pthread_test_023.cpp
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "it_pthread_test.h"
+
+static void *ThreadFuncTest(void *args)
+{
+    return (void *)NULL;
+}
+
+static int ChildProcess(void)
+{
+    int ret;
+    int currPolicy = 0;
+    int oldPolicy;
+    pthread_t newUserThread;
+    pthread_attr_t a = { 0 };
+    struct sched_param hpfparam = { 0 };
+    volatile unsigned int count = 0;
+    struct sched_param currSchedParam = { 0 };
+    int currTID = Syscall(SYS_gettid, 0, 0, 0, 0);
+    struct sched_param param = {
+        .sched_deadline = 3000000,  /* 3000000, 3s */
+        .sched_runtime = 200000,    /* 200000, 200ms */
+        .sched_period = 5000000,    /* 5000000, 5s */
+    };
+
+    ret = pthread_getschedparam(pthread_self(), &oldPolicy, &hpfparam);
+    ICUNIT_ASSERT_EQUAL(ret, 0, -ret);
+
+    ret = sched_setscheduler(getpid(), SCHED_DEADLINE, &param);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+
+    ret = pthread_getschedparam(pthread_self(), &currPolicy, &currSchedParam);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+    ICUNIT_ASSERT_EQUAL(currPolicy, SCHED_DEADLINE, LOS_NOK);
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_deadline, 3000000, LOS_NOK);    /* 3000000, 3s */
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_runtime, 200000, LOS_NOK);      /* 200000, 200ms */
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_period, 5000000, LOS_NOK);      /* 5000000, 5s */
+
+    ret = pthread_attr_init(&a);
+    pthread_attr_setschedpolicy(&a, SCHED_RR);
+    pthread_attr_setinheritsched(&a, PTHREAD_EXPLICIT_SCHED);
+    ret = pthread_create(&newUserThread, &a, ThreadFuncTest, NULL);
+    ICUNIT_ASSERT_NOT_EQUAL(ret, 0, ret);
+
+    printf("--- edf2 -- 1 -- Tid[%d] thread end ---\n\r", currTID);
+
+    return 0;
+}
+
+static int TestCase(void)
+{
+    int ret, pid, status;
+
+    pid = fork();
+    if (pid == 0) {
+        ret = ChildProcess();
+        if (ret != 0) {
+            exit(-1);
+        }
+        exit(0);
+    } else if (pid > 0) {
+        waitpid(pid, &status, 0);
+    } else {
+        exit(__LINE__);
+    }
+
+    return WEXITSTATUS(status) == 0 ? 0 : -1;
+}
+
+void ItTestPthread023(void)
+{
+    TEST_ADD_CASE("IT_POSIX_PTHREAD_023", TestCase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
+}
diff --git a/testsuites/unittest/process/basic/pthread/smoke/pthread_test_024.cpp b/testsuites/unittest/process/basic/pthread/smoke/pthread_test_024.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..9665294e0c3750b3fdf79d9a83fa47fce640575e
--- /dev/null
+++ b/testsuites/unittest/process/basic/pthread/smoke/pthread_test_024.cpp
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "it_pthread_test.h"
+
+static void *ThreadFuncTest(void *args)
+{
+    (void)args;
+    printf("hpf thread run...\r\n");
+    return NULL;
+}
+
+static int ChildProcess(void)
+{
+    int ret, currThreadPolicy;
+    pthread_attr_t a = { 0 };
+    struct sched_param hpfparam = { 0 };
+    pthread_t newUserThread;
+    volatile unsigned int count = 0;
+    int currTID = Syscall(SYS_gettid, 0, 0, 0, 0);
+    struct sched_param param = {
+        .sched_deadline = 3000000,  /* 3000000, 3s */
+        .sched_runtime = 200000,    /* 200000, 200ms */
+        .sched_period = 5000000,    /* 5000000, 5s */
+    };
+
+    ret = pthread_getschedparam(pthread_self(), &currThreadPolicy, &hpfparam);
+    ICUNIT_ASSERT_EQUAL(ret, 0, -ret);
+    ret = pthread_attr_init(&a);
+    hpfparam.sched_priority = hpfparam.sched_priority - 1;
+    pthread_attr_setschedparam(&a, &hpfparam);
+    ret = pthread_create(&newUserThread, &a, ThreadFuncTest, (void *)currTID);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+
+    ret = sched_setscheduler(getpid(), SCHED_DEADLINE, &param);
+    ICUNIT_ASSERT_EQUAL(ret, -1, ret);
+
+    return 0;
+}
+
+static int TestCase(void)
+{
+    int ret, pid, status;
+
+    pid = fork();
+    if (pid == 0) {
+        ret = ChildProcess();
+        if (ret != 0) {
+            exit(-1);
+        }
+        exit(0);
+    } else if (pid > 0) {
+        waitpid(pid, &status, 0);
+    } else {
+        exit(__LINE__);
+    }
+
+    return WEXITSTATUS(status) == 0 ? 0 : -1;
+}
+
+void ItTestPthread024(void)
+{
+    TEST_ADD_CASE("IT_POSIX_PTHREAD_024", TestCase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
+}
diff --git a/testsuites/unittest/process/basic/pthread/smoke/pthread_test_025.cpp b/testsuites/unittest/process/basic/pthread/smoke/pthread_test_025.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..3c339b7887226a2ac5cc58ec802308359cd9d2e0
--- /dev/null
+++ b/testsuites/unittest/process/basic/pthread/smoke/pthread_test_025.cpp
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "it_pthread_test.h"
+
+static void *ThreadFuncTest(void *args)
+{
+    (void)args;
+    printf("hpf thread run...\r\n");
+    return NULL;
+}
+
+static int ChildProcess(void)
+{
+    int currThreadPolicy;
+    pthread_attr_t a = { 0 };
+    struct sched_param hpfparam = { 0 };
+    int *childThreadRetval = nullptr;
+    pthread_t newUserThread;
+    int ret;
+    int currPolicy = 0;
+    volatile unsigned int count = 0;
+    struct sched_param currSchedParam = { 0 };
+    int currTID = Syscall(SYS_gettid, 0, 0, 0, 0);
+    struct sched_param param = {
+        .sched_deadline = 3000000,  /* 3000000, 3s */
+        .sched_runtime = 200000,    /* 200000, 200ms */
+        .sched_period = 5000000,    /* 5000000, 5s */
+    };
+
+    ret = pthread_getschedparam(pthread_self(), &currThreadPolicy, &hpfparam);
+    ICUNIT_ASSERT_EQUAL(ret, 0, -ret);
+    ret = pthread_attr_init(&a);
+    hpfparam.sched_priority = hpfparam.sched_priority - 1;
+    pthread_attr_setschedparam(&a, &hpfparam);
+    ret = pthread_create(&newUserThread, &a, ThreadFuncTest, (void *)currTID);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+
+    ret = pthread_join(newUserThread, NULL);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+
+    ret = sched_setscheduler(getpid(), SCHED_DEADLINE, &param);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+
+    return 0;
+}
+
+static int TestCase(void)
+{
+    int ret, pid, status;
+
+    pid = fork();
+    if (pid == 0) {
+        ret = ChildProcess();
+        if (ret != 0) {
+            exit(-1);
+        }
+        exit(0);
+    } else if (pid > 0) {
+        waitpid(pid, &status, 0);
+    } else {
+        exit(__LINE__);
+    }
+
+    return WEXITSTATUS(status) == 0 ? 0 : -1;
+}
+
+void ItTestPthread025(void)
+{
+    TEST_ADD_CASE("IT_POSIX_PTHREAD_025", TestCase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
+}
diff --git a/testsuites/unittest/process/basic/pthread/smoke/pthread_test_026.cpp b/testsuites/unittest/process/basic/pthread/smoke/pthread_test_026.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..b733d86c4d587166a93f95bfb17facaa0a7ec149
--- /dev/null
+++ b/testsuites/unittest/process/basic/pthread/smoke/pthread_test_026.cpp
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "it_pthread_test.h"
+
+static int ChildProcess(void)
+{
+    int ret;
+    int currPolicy = 0;
+    volatile unsigned int count = 0;
+    struct sched_param currSchedParam = { 0 };
+    struct sched_param param = {
+        .sched_deadline = 4000000,  /* 4000000, 4s */
+        .sched_runtime = 200000,    /* 200000, 200ms */
+        .sched_period = 5000000,    /* 5000000, 5s */
+    };
+
+    ret = sched_getparam(getpid(), &currSchedParam);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+
+    currPolicy = sched_getscheduler(getpid());
+    ICUNIT_ASSERT_EQUAL(currPolicy, SCHED_RR, LOS_NOK);
+    currSchedParam.sched_runtime = 0;
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_deadline, 0, LOS_NOK);
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_runtime, 0, LOS_NOK);
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_period, 0, LOS_NOK);
+
+    ret = sched_setscheduler(getpid(), SCHED_DEADLINE, &param);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+
+    currPolicy = sched_getscheduler(getpid());
+    ICUNIT_ASSERT_EQUAL(currPolicy, SCHED_DEADLINE, LOS_NOK);
+
+    ret = sched_getparam(getpid(), &currSchedParam);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_deadline, 4000000, LOS_NOK);    /* 4000000, 4s */
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_runtime, 200000, LOS_NOK);      /* 200000, 200ms */
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_period, 5000000, LOS_NOK);      /* 5000000, 5s */
+
+    printf("--- 1 edf thread start ---\n\r");
+    do {
+        for (volatile int i = 0; i < 100000; i++) { /* 100000, no special meaning */
+            for (volatile int j = 0; j < 10; j++) { /* 10, no special meaning */
+                int tmp = i - j;
+            }
+        }
+        if (count % 20 == 0) {  /* 20, no special meaning */
+            printf("--- 2 edf thread running ---\n\r");
+        }
+        count++;
+    } while (count <= 100); /* 100, no special meaning */
+    printf("--- 3 edf thread end ---\n\r");
+
+    return 0;
+}
+
+static int TestCase(void)
+{
+    int ret, pid, status;
+
+    pid = fork();
+    if (pid == 0) {
+        ret = ChildProcess();
+        if (ret != 0) {
+            exit(-1);
+        }
+        exit(0);
+    } else if (pid > 0) {
+        waitpid(pid, &status, 0);
+    } else {
+        exit(__LINE__);
+    }
+
+    return WEXITSTATUS(status) == 0 ? 0 : -1;
+}
+
+void ItTestPthread026(void)
+{
+    TEST_ADD_CASE("IT_POSIX_PTHREAD_026", TestCase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
+}
diff --git a/testsuites/unittest/process/basic/pthread/smoke/pthread_test_027.cpp b/testsuites/unittest/process/basic/pthread/smoke/pthread_test_027.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..49ca891c11601dd0389c376f3923822173f0a738
--- /dev/null
+++ b/testsuites/unittest/process/basic/pthread/smoke/pthread_test_027.cpp
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "it_pthread_test.h"
+
+static int ChildProcess(void)
+{
+    int ret;
+    int currPolicy = 0;
+    volatile unsigned int count = 0;
+    struct sched_param currSchedParam = { 0 };
+    struct sched_param param = {
+        .sched_deadline = 4000000,  /* 4000000, 4s */
+        .sched_runtime = 200000,    /* 200000, 200ms */
+        .sched_period = 5000000,    /* 5000000, 5s */
+    };
+
+    ret = sched_getparam(getpid(), &currSchedParam);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+
+    currPolicy = sched_getscheduler(getpid());
+    ICUNIT_ASSERT_EQUAL(currPolicy, SCHED_RR, LOS_NOK);
+    currSchedParam.sched_runtime = 0;
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_deadline, 0, LOS_NOK);
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_runtime, 0, LOS_NOK);
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_period, 0, LOS_NOK);
+
+    ret = sched_setscheduler(getpid(), SCHED_DEADLINE, &param);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+
+    currPolicy = sched_getscheduler(getpid());
+    ICUNIT_ASSERT_EQUAL(currPolicy, SCHED_DEADLINE, LOS_NOK);
+
+    ret = sched_getparam(getpid(), &currSchedParam);
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_deadline, 4000000, LOS_NOK);    /* 4000000, 4s */
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_runtime, 200000, LOS_NOK);      /* 200000, 200ms */
+    ICUNIT_ASSERT_EQUAL(currSchedParam.sched_period, 5000000, LOS_NOK);      /* 5000000, 5s */
+    return 0;
+}
+
+static int TestCase(void)
+{
+    int ret, pid, status;
+
+    pid = fork();
+    if (pid == 0) {
+        ret = ChildProcess();
+        if (ret != 0) {
+            exit(-1);
+        }
+        exit(0);
+    } else if (pid > 0) {
+        waitpid(pid, &status, 0);
+    } else {
+        exit(__LINE__);
+    }
+
+    return WEXITSTATUS(status) == 0 ? 0 : -1;
+}
+
+void ItTestPthread027(void)
+{
+    TEST_ADD_CASE("IT_POSIX_PTHREAD_027", TestCase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
+}