diff --git a/common/utils/include/constants.h b/common/utils/include/constants.h
index d9add7a7efe84648dee6cb5d7da68c037950a5ac..11ad4183d81b163401345d81290d8e434e66ace0 100644
--- a/common/utils/include/constants.h
+++ b/common/utils/include/constants.h
@@ -35,6 +35,7 @@ namespace DistributedHardware {
     constexpr int32_t MODE_ENABLE = 0;
     constexpr int32_t MODE_DISABLE = 1;
     constexpr uint32_t MAX_SWITCH_SIZE = 256;
+    constexpr uint32_t DISTRIBUTED_HARDWARE_FWK_SA_ID = 4801;
     const std::string LOW_LATENCY_KEY = "identity";
     const std::u16string DHMS_STUB_INTERFACE_TOKEN = u"ohos.distributedhardware.accessToken";
     const std::string COMPONENTSLOAD_PROFILE_PATH =
diff --git a/services/distributedhardwarefwkservice/src/distributed_hardware_manager_factory.cpp b/services/distributedhardwarefwkservice/src/distributed_hardware_manager_factory.cpp
index 1ed0dfd802cfb0db5e949def129045f4e0d2cc32..010872f7384873819d4255b9923a4972a0db2f9b 100644
--- a/services/distributedhardwarefwkservice/src/distributed_hardware_manager_factory.cpp
+++ b/services/distributedhardwarefwkservice/src/distributed_hardware_manager_factory.cpp
@@ -33,6 +33,7 @@
 #include "distributed_hardware_errno.h"
 #include "distributed_hardware_log.h"
 #include "distributed_hardware_manager.h"
+#include "iservice_registry.h"
 
 namespace OHOS {
 namespace DistributedHardware {
@@ -76,7 +77,16 @@ void DistributedHardwareManagerFactory::CheckExitSAOrNot()
         HiSysEventWriteMsg(DHFWK_EXIT_END, OHOS::HiviewDFX::HiSysEvent::EventType::BEHAVIOR,
             "dhfwk sa exit end.");
 
-        _Exit(0);
+        auto systemAbilityMgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
+        if (systemAbilityMgr != nullptr) {
+            int32_t ret = systemAbilityMgr->UnloadSystemAbility(DISTRIBUTED_HARDWARE_FWK_SA_ID);
+            if (ret != DH_FWK_SUCCESS) {
+                DHLOGE("systemAbilityMgr UnLoadSystemAbility failed, ret: %d", ret);
+            }
+            DHLOGI("systemAbilityMgr UnLoadSystemAbility success");
+        } else {
+            DHLOGE("systemAbilityMgr is nullptr.");
+        }
     }
 
     DHLOGI("After uninit, DM report devices online, reinit");
diff --git a/services/distributedhardwarefwkservice/test/unittest/common/accessmanager/BUILD.gn b/services/distributedhardwarefwkservice/test/unittest/common/accessmanager/BUILD.gn
index 307ba0d388c5486169ff3dfc97b41c7b435fd6fe..d62f0ad5acc1f48db317eefe08d0f20e1e595881 100644
--- a/services/distributedhardwarefwkservice/test/unittest/common/accessmanager/BUILD.gn
+++ b/services/distributedhardwarefwkservice/test/unittest/common/accessmanager/BUILD.gn
@@ -65,6 +65,7 @@ ohos_unittest("AccessManagerTest") {
   external_deps = [
     "c_utils:utils",
     "init:libbegetutil",
+    "samgr:samgr_proxy",
   ]
 }