diff --git a/cpp/CHANGELOG.md b/cpp/CHANGELOG.md
index 025af08e307fbbab3773aed9f80dc8b29042d99f..0346e0613838fb5797bccff6e2067d53d2c1d6e5 100644
--- a/cpp/CHANGELOG.md
+++ b/cpp/CHANGELOG.md
@@ -41,6 +41,7 @@ Please mark all change in change log and use the ticket from JIRA.
 - MS-400 - Add timestamp record in task state change function
 - MS-402 - Add dump implementation for TaskTableItem
 - MS-404 - Release index after search task done avoid memory increment continues
+- MS-405 - Add delete task support
 
 ## New Feature
 - MS-343 - Implement ResourceMgr
diff --git a/cpp/src/scheduler/task/DeleteTask.cpp b/cpp/src/scheduler/task/DeleteTask.cpp
index ee6b63b7708efe9511800d12542fe42cd4de509b..9f76de506e855a422d44057fb8b215f81707dd8b 100644
--- a/cpp/src/scheduler/task/DeleteTask.cpp
+++ b/cpp/src/scheduler/task/DeleteTask.cpp
@@ -6,10 +6,14 @@
 
 #include "DeleteTask.h"
 
+
 namespace zilliz {
 namespace milvus {
 namespace engine {
 
+XDeleteTask::XDeleteTask(DeleteContextPtr &delete_context)
+    : delete_context_ptr_(delete_context) {}
+
 void
 XDeleteTask::Load(LoadType type, uint8_t device_id) {
 
@@ -17,12 +21,13 @@ XDeleteTask::Load(LoadType type, uint8_t device_id) {
 
 void
 XDeleteTask::Execute() {
-
+    delete_context_ptr_->ResourceDone();
 }
 
 TaskPtr
 XDeleteTask::Clone() {
-    return nullptr;
+    auto task = std::make_shared<XDeleteTask>(delete_context_ptr_);
+    return task;
 }
 
 }
diff --git a/cpp/src/scheduler/task/DeleteTask.h b/cpp/src/scheduler/task/DeleteTask.h
index 9ca4e8b53ac172986884bf84e450b5edff9803b0..2b2662439104ff74ec3e40d56d8053da01b7e868 100644
--- a/cpp/src/scheduler/task/DeleteTask.h
+++ b/cpp/src/scheduler/task/DeleteTask.h
@@ -5,6 +5,7 @@
  ******************************************************************************/
 #pragma once
 
+#include <src/db/scheduler/context/DeleteContext.h>
 #include "Task.h"
 
 
@@ -14,6 +15,9 @@ namespace engine {
 
 class XDeleteTask : public Task {
 public:
+    explicit
+    XDeleteTask(DeleteContextPtr &delete_context);
+
     void
     Load(LoadType type, uint8_t device_id) override;
 
@@ -22,6 +26,9 @@ public:
 
     TaskPtr
     Clone() override;
+
+public:
+    DeleteContextPtr delete_context_ptr_;
 };
 
 }
diff --git a/cpp/src/scheduler/task/Task.h b/cpp/src/scheduler/task/Task.h
index 56716480977fe6b2c9a38094548c44c1792d04e9..4d78894d31048a43b4c2bc01b47a83f6f5777c52 100644
--- a/cpp/src/scheduler/task/Task.h
+++ b/cpp/src/scheduler/task/Task.h
@@ -35,6 +35,7 @@ public:
     virtual void
     Execute() = 0;
 
+    // TODO: dont use this method to support task move
     virtual TaskPtr
     Clone() = 0;
 
diff --git a/cpp/src/scheduler/task/TaskConvert.cpp b/cpp/src/scheduler/task/TaskConvert.cpp
index f29fd2960444c47bd9f15718770ffe1b93624869..43f70903dccd286bd2a55c92fac5f71c57b41192 100644
--- a/cpp/src/scheduler/task/TaskConvert.cpp
+++ b/cpp/src/scheduler/task/TaskConvert.cpp
@@ -22,8 +22,9 @@ TaskConvert(const ScheduleTaskPtr &schedule_task) {
             return task;
         }
         case ScheduleTaskType::kDelete: {
-            // TODO: convert to delete task
-            return nullptr;
+            auto delete_task = std::static_pointer_cast<DeleteTask>(schedule_task);
+            auto task = std::make_shared<XDeleteTask>(delete_task->context_);
+            return task;
         }
         default: {
             // TODO: unexpected !!!
diff --git a/cpp/src/scheduler/task/TaskConvert.h b/cpp/src/scheduler/task/TaskConvert.h
index 471592f9933bf4203f805212e6131a463ad055bb..bfc2df760bce1280660badc0113a155b3912c309 100644
--- a/cpp/src/scheduler/task/TaskConvert.h
+++ b/cpp/src/scheduler/task/TaskConvert.h
@@ -4,9 +4,11 @@
  * Proprietary and confidential.
  ******************************************************************************/
 
-#include "src/db/scheduler/task/IndexLoadTask.h"
+#include "db/scheduler/task/DeleteTask.h"
+#include "db/scheduler/task/IndexLoadTask.h"
 #include "Task.h"
 #include "SearchTask.h"
+#include "DeleteTask.h"
 
 namespace zilliz {
 namespace milvus {