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 ea9f10f1d7d43a6fc7460da9e6015402b1e4cb45..adc6cb99dcba89d692cc6dfa280c2d13e8b0ad8b 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
@@ -41,7 +41,7 @@ public:
         const std::string& value) override;
 
 private:
-    DCameraSourceHandler() = default;
+    DCameraSourceHandler();
     ~DCameraSourceHandler();
 
 private:
@@ -58,4 +58,4 @@ __attribute__((visibility("default"))) IDistributedHardwareSource *GetSourceHard
 #endif
 }
 }
-#endif
\ No newline at end of file
+#endif
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 5c22664a96bfa0aa8fca4adbd075f0cf8ed92fe8..9aeb4fa090b32a797f908760e22cca92634a0667 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
@@ -26,6 +26,12 @@ namespace OHOS {
 namespace DistributedHardware {
 IMPLEMENT_SINGLE_INSTANCE(DCameraSourceHandler);
 
+DCameraSourceHandler::DCameraSourceHandler()
+{
+    DHLOGI("DCameraSourceHandler construct.");
+    callback_ = new DCameraSourceCallback();
+}
+
 DCameraSourceHandler::~DCameraSourceHandler()
 {
     DHLOGI("~DCameraSourceHandler");
@@ -41,11 +47,6 @@ int32_t DCameraSourceHandler::InitSource(const std::string& params)
         return DCAMERA_INIT_ERR;
     }
 
-    callback_ = new DCameraSourceCallback();
-    if (callback_ == nullptr) {
-        DHLOGE("DCameraSourceHandler InitSource init callback failed");
-        return DCAMERA_INIT_ERR;
-    }
     int32_t ret = dCameraSourceSrv->InitSource(params, callback_);
     DHLOGI("DCameraSourceHandler InitSource end, ret: %d", ret);
     return ret;
@@ -123,4 +124,4 @@ IDistributedHardwareSource *GetSourceHardwareHandler()
     return &DCameraSourceHandler::GetInstance();
 }
 }
-}
\ No newline at end of file
+}