diff --git a/runtime/main/extend/systemplugin/napi/configPolicy.js b/runtime/main/extend/systemplugin/napi/configPolicy.js
new file mode 100644
index 00000000..d2088ac2
--- /dev/null
+++ b/runtime/main/extend/systemplugin/napi/configPolicy.js
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { paramMock } from "../utils"
+
+export function mockConfigPolicy() {
+  const configPolicy = {
+    getOneCfgFile: function (...args) {
+      console.warn("configPolicy.getOneCfgFile interface mocked in the Previewer. How this interface works on the" +
+        " Previewer may be different from that on a real device.")
+      const len = args.length
+      if (typeof args[len - 1] === 'function') {
+        args[len - 1].call(this, paramMock.businessErrorMock, paramMock.paramStringMock);
+      } else {
+        return new Promise((resolve, reject) => {
+          resolve(paramMock.paramStringMock);
+        })
+      }
+    },
+    getCfgFiles: function (...args) {
+      console.warn("configPolicy.getCfgFiles interface mocked in the Previewer. How this interface works on the" +
+        " Previewer may be different from that on a real device.")
+      const len = args.length
+      if (typeof args[len - 1] === 'function') {
+        args[len - 1].call(this, paramMock.businessErrorMock, paramMock.paramArrayMock);
+      } else {
+        return new Promise((resolve, reject) => {
+          resolve(paramMock.paramArrayMock);
+        })
+      }
+    },
+    getCfgDirList: function (...args) {
+      console.warn("configPolicy.getCfgDirList interface mocked in the Previewer. How this interface works on the" +
+        " Previewer may be different from that on a real device.")
+      const len = args.length
+      if (typeof args[len - 1] === 'function') {
+        args[len - 1].call(this, paramMock.businessErrorMock, paramMock.paramArrayMock);
+      } else {
+        return new Promise((resolve, reject) => {
+          resolve(paramMock.paramArrayMock);
+        })
+      }
+    }
+  }
+  return configPolicy
+}
\ No newline at end of file
diff --git a/runtime/main/extend/systemplugin/napi/index.js b/runtime/main/extend/systemplugin/napi/index.js
index 70fd7eb0..36ca2394 100644
--- a/runtime/main/extend/systemplugin/napi/index.js
+++ b/runtime/main/extend/systemplugin/napi/index.js
@@ -59,6 +59,7 @@ import { mockFileManager } from "./filemanager"
 import { mockEnvironment } from "./environment"
 import { mockSettings } from './settings'
 import { mockAbilityAccessCtrl } from './abilityAccessCtrl'
+import { mockConfigPolicy } from './configPolicy'
 import { mockUpdate } from './update'
 import { mockBackgroundTaskManager } from './backgroundTaskManager'
 import { mockSecurityLabel } from './securitylabel'
@@ -158,6 +159,8 @@ export function mockRequireNapiFun() {
         return mockSettings();
       case "abilityAccessCtrl":
         return mockAbilityAccessCtrl();
+      case "configPolicy":
+        return mockConfigPolicy();
       case "update":
         return mockUpdate();
       case "backgroundTaskManager":