diff --git a/services/distributedhardwarefwkservice/test/unittest/common/accessmanager/access_manager_test.cpp b/services/distributedhardwarefwkservice/test/unittest/common/accessmanager/access_manager_test.cpp
index c84f0a71e0320da0cf6bf0ab9230037fcbc4bd99..822959a6b9354e3b4f2f4fa65b03a0e4887a2e0f 100644
--- a/services/distributedhardwarefwkservice/test/unittest/common/accessmanager/access_manager_test.cpp
+++ b/services/distributedhardwarefwkservice/test/unittest/common/accessmanager/access_manager_test.cpp
@@ -56,16 +56,7 @@ public:
 
 void AccessManagerTest::SetUp() {}
 
-void AccessManagerTest::TearDown()
-{
-    // clear all the online devices
-    for (const auto &dev : TEST_DEVICES) {
-        DistributedHardwareManagerFactory::GetInstance().SendOffLineEvent(dev.first, dev.second, TEST_DEV_TYPE_PAD);
-    }
-
-    // clear DM register status
-    AccessManager::GetInstance()->UnInit();
-}
+void AccessManagerTest::TearDown() {}
 
 void AccessManagerTest::SetUpTestCase() {}