diff --git a/interfaces/inner_kits/native_cpp/camera_source/include/dcamera_source_handler.h b/interfaces/inner_kits/native_cpp/camera_source/include/dcamera_source_handler.h
index 09d278f6fb3e9826aca767348635762238bff26a..c5f85e5f87d4bc5a4638729441eaf19ffb62504f 100644
--- a/interfaces/inner_kits/native_cpp/camera_source/include/dcamera_source_handler.h
+++ b/interfaces/inner_kits/native_cpp/camera_source/include/dcamera_source_handler.h
@@ -45,7 +45,7 @@ private:
         DCAMERA_SA_STATE_STOP = 0,
         DCAMERA_SA_STATE_START = 1,
     } DCameraSAState;
-    DCameraSourceHandler() = default;
+    DCameraSourceHandler();
     ~DCameraSourceHandler();
     void FinishStartSA(const std::string &params);
     void FinishStartSAFailed(int32_t systemAbilityId);
diff --git a/interfaces/inner_kits/native_cpp/camera_source/src/dcamera_source_handler.cpp b/interfaces/inner_kits/native_cpp/camera_source/src/dcamera_source_handler.cpp
index 0cbb17a8dbe61c7d0e435278ec8386c9a28beb84..5c520b2b0d311cf42b60d9b98fb995fb940df6c4 100644
--- a/interfaces/inner_kits/native_cpp/camera_source/src/dcamera_source_handler.cpp
+++ b/interfaces/inner_kits/native_cpp/camera_source/src/dcamera_source_handler.cpp
@@ -30,6 +30,12 @@ namespace OHOS {
 namespace DistributedHardware {
 IMPLEMENT_SINGLE_INSTANCE(DCameraSourceHandler);
 
+DCameraSourceHandler::DCameraSourceHandler()
+{
+    DHLOGI("DCameraSourceHandler construct.");
+    callback_ = new DCameraSourceCallback();
+}
+
 DCameraSourceHandler::~DCameraSourceHandler()
 {
     DHLOGI("~DCameraSourceHandler");
@@ -72,11 +78,6 @@ void DCameraSourceHandler::FinishStartSA(const std::string &params)
         return;
     }
 
-    callback_ = new DCameraSourceCallback();
-    if (callback_ == nullptr) {
-        DHLOGE("DCameraSourceHandler InitSource init callback failed");
-        return;
-    }
     dCameraSourceSrv->InitSource(params, callback_);
     std::unique_lock<std::mutex> lock(producerMutex_);
     state_ = DCAMERA_SA_STATE_START;
@@ -122,10 +123,6 @@ int32_t DCameraSourceHandler::RegisterDistributedHardware(const std::string& dev
     std::lock_guard<std::mutex> autoLock(optLock_);
     std::string reqId = GetRandomID();
 
-    if (callback_ == nullptr) {
-        DHLOGE("DCameraSourceHandler RegisterDistributedHardware DCameraSourceCallback is null.");
-        return DCAMERA_BAD_VALUE;
-    }
     callback_->PushRegCallback(reqId, callback);
     int32_t ret = dCameraSourceSrv->RegisterDistributedHardware(devId, dhId, reqId, param);
     if (ret != DCAMERA_OK) {
@@ -150,10 +147,6 @@ int32_t DCameraSourceHandler::UnregisterDistributedHardware(const std::string& d
     std::lock_guard<std::mutex> autoLock(optLock_);
     std::string reqId = GetRandomID();
 
-    if (callback_ == nullptr) {
-        DHLOGE("DCameraSourceHandler RegisterDistributedHardware DCameraSourceCallback is null.");
-        return DCAMERA_BAD_VALUE;
-    }
     callback_->PushUnregCallback(reqId, callback);
     int32_t ret = dCameraSourceSrv->UnregisterDistributedHardware(devId, dhId, reqId);
     if (ret != DCAMERA_OK) {