diff --git a/ability/ability_runtime/apicover/apicoverhaptest/entry/src/main/ets/test/List.test.ets b/ability/ability_runtime/apicover/apicoverhaptest/entry/src/main/ets/test/List.test.ets
index 38a460a83beb6ff912abe6f8f49b7477fdb1f3db..157eb413b4cf85ceb2d280236bcb2eeff58524b3 100644
--- a/ability/ability_runtime/apicover/apicoverhaptest/entry/src/main/ets/test/List.test.ets
+++ b/ability/ability_runtime/apicover/apicoverhaptest/entry/src/main/ets/test/List.test.ets
@@ -14,6 +14,7 @@
  */
 
 import apiCoverAbility from './ApiCoverAbility.test'
+import newApiCoverAbility from './NewApiCoverAbility.test'
 import verificationTest from './VerificationTest'
 import wantAgentCover from './WantAgentCover.test'
 import contextEnvironmentTest from './ContextEnvironmentTest.test';
@@ -21,6 +22,7 @@ import contextEnvironmentTest from './ContextEnvironmentTest.test';
 export default function List() {
 
   apiCoverAbility()
+  newApiCoverAbility()
   verificationTest()
   wantAgentCover()
   contextEnvironmentTest(globalThis.applicationContext)
diff --git a/ability/ability_runtime/apicover/apicoverhaptest/entry/src/main/ets/test/NewApiCoverAbility.test.ets b/ability/ability_runtime/apicover/apicoverhaptest/entry/src/main/ets/test/NewApiCoverAbility.test.ets
new file mode 100644
index 0000000000000000000000000000000000000000..97e30ee93cd61b3d6bd46f6ae8a98c4f3ac07e02
--- /dev/null
+++ b/ability/ability_runtime/apicover/apicoverhaptest/entry/src/main/ets/test/NewApiCoverAbility.test.ets
@@ -0,0 +1,82 @@
+/*
+ * 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 { describe, beforeAll, beforeEach, afterEach, afterAll, it, expect } from '@ohos/hypium'
+
+import errorManager from '@ohos.app.ability.errorManager';
+
+function sleep(time) {
+  return new Promise((resolve)=>setTimeout(resolve,time));
+}
+
+export default function ApiCoverTest() {
+  describe('NewApiCoverTestTest', function () {
+    afterEach(async (done) => {
+      setTimeout(function () {
+        done();
+      }, 2500);
+    })
+
+    /*
+     * @tc.number  SUB_AA_ReisterErrorObserver_New_0100
+     * @tc.name    Test ReisterErrorObserver.
+     * @tc.desc    Function test
+     * @tc.level   3
+     */
+    it('SUB_AA_ReisterErrorObserver_New_0100', 0, async function (done) {
+      let errorObserver:errorManager.ErrorObserver;
+      errorObserver = {
+        onUnhandledException:(errMessage) => {
+          console.info("SUB_AA_ReisterErrorObserver_0100" + JSON.stringify(errMessage));
+        }
+      }
+      try {
+        let errCodeId = errorManager.on("error", errorObserver)
+        expect(errCodeId).assertEqual(0)
+        errorManager.off("error", errCodeId).then((data)=>{
+          expect(data).assertEqual(undefined)
+          done();
+        }).catch((err)=>{
+          expect().assertFail()
+          done();
+        })
+      } catch (error) {
+        expect().assertFail()
+        done();
+      }
+      
+    });
+
+    /*
+     * @tc.number  SUB_AA_ReisterErrorObserver_0200
+     * @tc.name    Test unregisterErrorObserver with error number.
+     * @tc.desc    Function test
+     * @tc.level   3
+     */
+    it('SUB_AA_ReisterErrorObserver_New_0200', 0, async function (done) {
+      try {
+        errorManager.off("error", -1).then((data)=>{
+          expect().assertFail()
+          done();
+        }).catch((err)=>{
+          expect(err.code).assertEqual(401)
+          done();
+        })
+      } catch (error) {
+        expect().assertFail()
+        done();
+      }
+    });
+  })
+}