diff --git a/runtime/main/extend/systemplugin/napi/convertxml.js b/runtime/main/extend/systemplugin/napi/convertxml.js
new file mode 100644
index 00000000..e26a9304
--- /dev/null
+++ b/runtime/main/extend/systemplugin/napi/convertxml.js
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2021 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 mockConvertXml() {
+    const result = {
+        ConvertXML: function(...args) {
+            console.warn("convertXml.ConvertXML interface mocked in the Previewer. How this interface works on the Previewer" +
+                " may be different from that on a real device.")
+                return ConvertXMLMock;
+        }
+    }
+    const ConvertXMLMock = {
+        convert: function(...args) {
+            console.warn("ConvertXML.convert interface mocked in the Previewer. How this interface works on the Previewer" +
+                " may be different from that on a real device.")
+            return paramMock.paramObjectMock;
+        }
+    }
+    return result;
+}
diff --git a/runtime/main/extend/systemplugin/napi/index.js b/runtime/main/extend/systemplugin/napi/index.js
index c7a588b2..71483b5f 100644
--- a/runtime/main/extend/systemplugin/napi/index.js
+++ b/runtime/main/extend/systemplugin/napi/index.js
@@ -1,3 +1,17 @@
+/*
+ * Copyright (c) 2021 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 { mockSystemParameter } from './systemParameter'
 import { mockAbility } from './applicationAbility'
 import { mockFormExtension } from './applicationFormExtension'
@@ -34,6 +48,7 @@ import { mockWifi } from './wifi'
 import { mockSettings } from './settings'
 import { mockUri } from './uri'
 import { mockXml } from './xml'
+import { mockConvertXml } from './convertxml'
 import { mockStatfs } from './statfs'
 
 export function mockRequireNapiFun() {
@@ -111,6 +126,8 @@ export function mockRequireNapiFun() {
         return mockUri();
       case "xml":
         return mockXml();
+      case "convertxml":
+        return mockConvertXml();
       case "statfs":
         return mockStatfs();
       default:
diff --git a/runtime/main/extend/systemplugin/napi/xml.js b/runtime/main/extend/systemplugin/napi/xml.js
index 74ebc513..e7438d29 100644
--- a/runtime/main/extend/systemplugin/napi/xml.js
+++ b/runtime/main/extend/systemplugin/napi/xml.js
@@ -1,3 +1,17 @@
+/*
+ * Copyright (c) 2021 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 mockXml() {
@@ -11,11 +25,6 @@ export function mockXml() {
             console.warn("xml.XmlPullParser interface mocked in the Previewer. How this interface works on the Previewer" +
                 " may be different from that on a real device.")
                 return XmlPullParserMock;
-        },
-        ConvertXML: function(...args) {
-            console.warn("xml.ConvertXML interface mocked in the Previewer. How this interface works on the Previewer" +
-                " may be different from that on a real device.")
-                return ConvertXMLMock;
         }
     }
     const XmlSerializerMock = {
@@ -58,20 +67,13 @@ export function mockXml() {
         setDocType: function(...args) {
             console.warn("XmlSerializer.setDocType interface mocked in the Previewer. How this interface works on the Previewer" +
                 " may be different from that on a real device.")
-        },
+        }
     }
     const XmlPullParserMock = {
         parse: function(...args) {
             console.warn("XmlPullParser.parse interface mocked in the Previewer. How this interface works on the Previewer" +
                 " may be different from that on a real device.")
-        },
-    }
-    const ConvertXMLMock = {
-        convert: function(...args) {
-            console.warn("ConvertXML.convert interface mocked in the Previewer. How this interface works on the Previewer" +
-                " may be different from that on a real device.")
-            return paramMock.paramObjectMock;
-        },
+        }
     }
     return result;
 }