diff --git a/runtime/main/extend/systemplugin/napi/index.js b/runtime/main/extend/systemplugin/napi/index.js
index cee8d33b..0988745c 100644
--- a/runtime/main/extend/systemplugin/napi/index.js
+++ b/runtime/main/extend/systemplugin/napi/index.js
@@ -14,6 +14,7 @@
  */
 
 import { mockSystemParameter } from './ohos_systemparameter'
+import { mockSystemCapability } from './ohos_systemCapability'
 import { mockAbility } from './ohos_application_Ability'
 import { mockErrorCode } from './ohos_ability_errorCode'
 import { mockFeatureAbility } from './ohos_ability_featureAbility'
@@ -292,6 +293,8 @@ export function mockRequireNapiFun() {
         return mockBluetooth();
       case "batteryinfo":
         return mockBatteryinfo();
+      case "systemCapability":
+        return mockSystemCapability();
       case "systemParameter":
         return mockSystemParameter();
       case "ability.errorCode":
diff --git a/runtime/main/extend/systemplugin/napi/ohos_systemCapability.js b/runtime/main/extend/systemplugin/napi/ohos_systemCapability.js
new file mode 100644
index 00000000..dfec3a99
--- /dev/null
+++ b/runtime/main/extend/systemplugin/napi/ohos_systemCapability.js
@@ -0,0 +1,34 @@
+/*
+ * 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 mockSystemCapability() {
+  const systemCapability = {
+    querySystemCapabilities: function (...args) {
+      console.warn("systemCapability.querySystemCapabilities 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);
+        });
+      }
+    }
+  }
+  return systemCapability
+}
\ No newline at end of file