diff --git a/begetd.gni b/begetd.gni
index 437ce8bc6a2e6d09c54142e4483466aeecfa6bd0..734f839a3888fb990b1cce7696f3bb3b213f1351 100644
--- a/begetd.gni
+++ b/begetd.gni
@@ -28,5 +28,8 @@ declare_args() {
   enable_ohos_startup_init_lite_use_posix_file_api = false
   config_ohos_startup_init_lite_data_path = "/"
 
+  # config memory size for liteos-m
+  config_ohos_startup_init_lite_memory_size = 5120
+
   # boot_kernel_extended_cmdline for extend cmdline
 }
diff --git a/services/param/base/BUILD.gn b/services/param/base/BUILD.gn
index b1aadaae600c9dbd92d53f76ca73fa4bc777f2d8..d012356b7f9855b7ca3850d81c768585f4927fd8 100644
--- a/services/param/base/BUILD.gn
+++ b/services/param/base/BUILD.gn
@@ -69,6 +69,10 @@ if (defined(ohos_lite)) {
         "PARAMWORKSPACE_NEED_MUTEX",
       ]
     }
+    if (defined(config_ohos_startup_init_lite_memory_size)) {
+      defines +=
+          [ "PARAM_WORKSPACE_MAX=${config_ohos_startup_init_lite_memory_size}" ]
+    }
   }
 } else {
   if (use_musl) {
diff --git a/services/param/include/param_osadp.h b/services/param/include/param_osadp.h
index cf9de49f8684bbd1562f76aec1c96bc975e37901..26b093fa186ae348011fa2af173c20d8d2e9b8f3 100755
--- a/services/param/include/param_osadp.h
+++ b/services/param/include/param_osadp.h
@@ -59,7 +59,9 @@ extern "C" {
 #ifdef STARTUP_INIT_TEST
 #define PARAM_WORKSPACE_MAX (1024 * 50)
 #else
-#define PARAM_WORKSPACE_MAX (1024 * 4)
+#ifndef PARAM_WORKSPACE_MAX
+#define PARAM_WORKSPACE_MAX (1024 * 5)
+#endif
 #endif
 #define PARAM_WORKSPACE_SMALL PARAM_WORKSPACE_MAX
 #define PARAM_WORKSPACE_DEF PARAM_WORKSPACE_MAX
diff --git a/services/param/liteos/BUILD.gn b/services/param/liteos/BUILD.gn
index ea03c3b9fa679913b8cb7297bb08b8c23ba7a870..e5dbfc2244bc7ba5545450cce11b2f4f2e9b8791 100644
--- a/services/param/liteos/BUILD.gn
+++ b/services/param/liteos/BUILD.gn
@@ -103,6 +103,10 @@ static_library("param_init_lite") {
       "PARAM_SUPPORT_CYCLE_CHECK",
     ]
   }
+  if (defined(config_ohos_startup_init_lite_memory_size)) {
+    defines +=
+        [ "PARAM_WORKSPACE_MAX=${config_ohos_startup_init_lite_memory_size}" ]
+  }
 }
 
 static_library("param_client_lite") {
@@ -148,5 +152,10 @@ static_library("param_client_lite") {
       include_dirs += [ "$root_out_dir/gen/init" ]
       defines += [ "PARAM_LOAD_CFG_FROM_CODE" ]
     }
+
+    if (defined(config_ohos_startup_init_lite_memory_size)) {
+      defines +=
+          [ "PARAM_WORKSPACE_MAX=${config_ohos_startup_init_lite_memory_size}" ]
+    }
   }
 }
diff --git a/services/param/liteos/param_osadp.c b/services/param/liteos/param_osadp.c
index 3451c24961774e5ac8cb4d55ceb4ac479c75f10a..c6c59ee44e8bbd278cc4761ac09d9a3909dafdd1 100644
--- a/services/param/liteos/param_osadp.c
+++ b/services/param/liteos/param_osadp.c
@@ -215,13 +215,26 @@ INIT_LOCAL_API int ParamMutexDelete(ParamMutex *mutex)
 #endif
 
 #ifdef __LITEOS_M__
+__attribute__((weak)) void* GetSysParamMem(uint32_t spaceSize)
+{
+    return malloc(spaceSize);
+}
+
+__attribute__((weak)) void FreeSysParamMem(void *mem)
+{
+    if (mem == NULL) {
+        return;
+    }
+    free(mem);
+}
+
 INIT_LOCAL_API void *GetSharedMem(const char *fileName, MemHandle *handle, uint32_t spaceSize, int readOnly)
 {
     PARAM_CHECK(spaceSize <= PARAM_WORKSPACE_MAX, return NULL, "Invalid spaceSize %u", spaceSize);
     UNUSED(fileName);
     UNUSED(handle);
     UNUSED(readOnly);
-    return (void *)malloc(spaceSize);
+    return GetSysParamMem(spaceSize);
 }
 
 INIT_LOCAL_API void FreeSharedMem(const MemHandle *handle, void *mem, uint32_t dataSize)
@@ -229,7 +242,7 @@ INIT_LOCAL_API void FreeSharedMem(const MemHandle *handle, void *mem, uint32_t d
     PARAM_CHECK(mem != NULL && handle != NULL, return, "Invalid mem or handle");
     UNUSED(handle);
     UNUSED(dataSize);
-    free(mem);
+    FreeSysParamMem(mem);
 }
 
 INIT_LOCAL_API void paramMutexEnvInit(void)