diff --git a/frameworks/js/napi/js_child_process_manager/js_child_process_manager.cpp b/frameworks/js/napi/js_child_process_manager/js_child_process_manager.cpp
index bf9668bb92..d6f6a55562 100644
--- a/frameworks/js/napi/js_child_process_manager/js_child_process_manager.cpp
+++ b/frameworks/js/napi/js_child_process_manager/js_child_process_manager.cpp
@@ -72,18 +72,20 @@ private:
         int32_t startMode;
         if (!ConvertFromJsValue(env, argv[0], srcEntry)) {
             TAG_LOGE(AAFwkTag::PROCESSMGR, "Parse param srcEntry failed");
-            ThrowError(env, AbilityErrorCode::ERROR_CODE_INVALID_PARAM);
+            ThrowInvalidParamError(env, "Parse param srcEntry failed, must be a valid string.");
             return CreateJsUndefined(env);
         }
         if (!ConvertFromJsValue(env, argv[1], startMode)) {
             TAG_LOGE(AAFwkTag::PROCESSMGR, "Parse param startMode failed");
-            ThrowError(env, AbilityErrorCode::ERROR_CODE_INVALID_PARAM);
+            ThrowInvalidParamError(env,
+                "Unsupported startMode, must be StartMode.SELF_FORK or StartMode.APP_SPAWN_FORK.");
             return CreateJsUndefined(env);
         }
         TAG_LOGD(AAFwkTag::PROCESSMGR, "StartMode: %{public}d", startMode);
         if (startMode != MODE_SELF_FORK && startMode != MODE_APP_SPAWN_FORK) {
             TAG_LOGE(AAFwkTag::PROCESSMGR, "Not supported StartMode");
-            ThrowError(env, AbilityErrorCode::ERROR_CODE_INVALID_PARAM);
+            ThrowInvalidParamError(env,
+                "Unsupported startMode, must be StartMode.SELF_FORK or StartMode.APP_SPAWN_FORK.");
             return CreateJsUndefined(env);
         }
         NapiAsyncTask::CompleteCallback complete = [srcEntry, startMode](napi_env env, NapiAsyncTask &task,
@@ -113,7 +115,8 @@ private:
             }
             default: {
                 TAG_LOGE(AAFwkTag::PROCESSMGR, "Not supported StartMode");
-                task.Reject(env, CreateJsError(env, AbilityErrorCode::ERROR_CODE_INVALID_PARAM));
+                task.Reject(env, CreateInvalidParamJsError(env,
+                    "Unsupported startMode,must be StartMode.SELF_FORK or StartMode.APP_SPAWN_FORK."));
                 return;
             }
         }
diff --git a/frameworks/native/runtime/js_error_utils.cpp b/frameworks/native/runtime/js_error_utils.cpp
index 62441f9155..32be7a3044 100755
--- a/frameworks/native/runtime/js_error_utils.cpp
+++ b/frameworks/native/runtime/js_error_utils.cpp
@@ -64,6 +64,11 @@ void ThrowNoPermissionError(napi_env env, const std::string& permission)
         GetNoPermissionErrorMsg(permission)));
 }
 
+void ThrowInvalidParamError(napi_env env, const std::string &message)
+{
+    napi_throw(env, CreateInvalidParamJsError(env, message));
+}
+
 void ThrowErrorByNativeErr(napi_env env, int32_t err)
 {
     napi_throw(env, CreateJsErrorByNativeErr(env, err));
@@ -74,6 +79,11 @@ napi_value CreateJsError(napi_env env, const AbilityErrorCode& err)
     return CreateJsError(env, static_cast<int32_t>(err), GetErrorMsg(err));
 }
 
+napi_value CreateInvalidParamJsError(napi_env env, const std::string &message)
+{
+    return CreateJsError(env, static_cast<int32_t>(AbilityErrorCode::ERROR_CODE_INVALID_PARAM), message);
+}
+
 napi_value CreateNoPermissionError(napi_env env, const std::string& permission)
 {
     return CreateJsError(env,
diff --git a/interfaces/inner_api/runtime/include/js_error_utils.h b/interfaces/inner_api/runtime/include/js_error_utils.h
index 00330632ec..9388851313 100755
--- a/interfaces/inner_api/runtime/include/js_error_utils.h
+++ b/interfaces/inner_api/runtime/include/js_error_utils.h
@@ -28,9 +28,11 @@ void ThrowInvaildCallerError(napi_env env);
 void ThrowTooFewParametersError(napi_env env);
 void ThrowInvalidNumParametersError(napi_env env);
 void ThrowNoPermissionError(napi_env env, const std::string& permission);
+void ThrowInvalidParamError(napi_env env, const std::string &message);
 void ThrowErrorByNativeErr(napi_env env, int32_t err);
 
 napi_value CreateJsError(napi_env env, const AbilityErrorCode& err);
+napi_value CreateInvalidParamJsError(napi_env env, const std::string &message);
 napi_value CreateNoPermissionError(napi_env env, const std::string& permission);
 napi_value CreateJsErrorByNativeErr(napi_env env, int32_t err, const std::string& permission = "");
 }  // namespace AbilityRuntime