diff --git a/services/service/src/device_manager_service.cpp b/services/service/src/device_manager_service.cpp
index 360c2f0de641a60e395e164a13484e29752c0e63..7bfe6eae19b402293096ce5437e810fa81055465 100644
--- a/services/service/src/device_manager_service.cpp
+++ b/services/service/src/device_manager_service.cpp
@@ -1117,7 +1117,7 @@ int32_t DeviceManagerService::SetUserOperation(std::string &pkgName, int32_t act
     }
     JsonObject paramJson;
     paramJson.Parse(params);
-    if (paramJson.IsDiscarded() || !IsString(paramJson, PARAM_KEY_META_TYPE)) {
+    if (paramJson.IsDiscarded() || !IsInt32(paramJson, PARAM_KEY_META_TYPE)) {
         LOGE("meta type not found");
         return ERR_DM_INPUT_PARA_INVALID;
     }
diff --git a/test/commonunittest/UTTest_dm_auth_manager_first.cpp b/test/commonunittest/UTTest_dm_auth_manager_first.cpp
index deb4543468eb529cb7906f86ccfcfe44a4497f54..fe638b6fb2214bd807ae8b3ce7531bb051eba368 100644
--- a/test/commonunittest/UTTest_dm_auth_manager_first.cpp
+++ b/test/commonunittest/UTTest_dm_auth_manager_first.cpp
@@ -736,8 +736,10 @@ HWTEST_F(DmAuthManagerTest, OnUserOperation_005, testing::ext::TestSize.Level1)
 HWTEST_F(DmAuthManagerTest, OnUserOperation_006, testing::ext::TestSize.Level1)
 {
     int32_t action = 5;
-    std::string params = "5";
-    int32_t ret = authManager_->OnUserOperation(action, params);
+    JsonObject param;
+    param[PIN_CODE_KEY] = "5";
+    std::string paramStr = param.Dump();
+    int32_t ret = authManager_->OnUserOperation(action, paramStr);
     ASSERT_EQ(ret, DM_OK);
 }