diff --git a/services/distributedfiledaemon/BUILD.gn b/services/distributedfiledaemon/BUILD.gn
old mode 100755
new mode 100644
index bf933bc7585dcbbaa831a856ef98dfe769d8b6b4..cf2b26c6178f9d7301ca2b376628ab024282864c
--- a/services/distributedfiledaemon/BUILD.gn
+++ b/services/distributedfiledaemon/BUILD.gn
@@ -44,6 +44,8 @@ ohos_shared_library("libdistributedfiledaemon") {
     "//foundation/distributedhardware/devicemanager/interfaces/inner_kits/native_cpp:devicemanagersdk",
   ]
   external_deps = [
+    "ability_base:want",
+    "common_event_service:cesfwk_innerkits",
     "dataclassification:data_transit_mgr",
     "dsoftbus_standard:softbus_client",
     "ipc:ipc_core",
diff --git a/services/distributedfiledaemon/include/multiuser/os_account_observer.h b/services/distributedfiledaemon/include/multiuser/os_account_observer.h
index a7cc9e024fd60895517aab313934560e1d0cc0a6..719a5267cb98867035f24b5ab9535241149be7d3 100644
--- a/services/distributedfiledaemon/include/multiuser/os_account_observer.h
+++ b/services/distributedfiledaemon/include/multiuser/os_account_observer.h
@@ -20,20 +20,24 @@
 #include <mutex>
 #include <vector>
 
+#include "common_event_manager.h"
+#include "common_event_subscribe_info.h"
+#include "common_event_subscriber.h"
+#include "common_event_support.h"
+#include "matching_skills.h"
 #include "mountpoint/mount_point.h"
-#include "os_account_manager.h"
 
 namespace OHOS {
 namespace Storage {
 namespace DistributedFile {
 static constexpr int MOUNT_POINT_NUM = 2;
-class OsAccountObserver final : public AccountSA::OsAccountSubscriber {
+class OsAccountObserver final : public EventFwk::CommonEventSubscriber {
 public:
     OsAccountObserver() = default;
     ~OsAccountObserver();
-    explicit OsAccountObserver(const AccountSA::OsAccountSubscribeInfo &subscribeInfo);
+    explicit OsAccountObserver(const EventFwk::CommonEventSubscribeInfo &subscribeInfo);
 
-    void OnAccountsChanged(const int &id) override;
+    virtual void OnReceiveEvent(const EventFwk::CommonEventData &eventData) override;
 private:
     void RemoveMPInfo(const int id);
     void AddMPInfo(const int id, const std::string &relativePath);
diff --git a/services/distributedfiledaemon/src/ipc/daemon.cpp b/services/distributedfiledaemon/src/ipc/daemon.cpp
index 8f9da6a61a85c810a2a58f1fecae8992bdb2b7c3..206b729944adb687b12aae4aa475ff08fd5ad8fe 100644
--- a/services/distributedfiledaemon/src/ipc/daemon.cpp
+++ b/services/distributedfiledaemon/src/ipc/daemon.cpp
@@ -15,8 +15,9 @@
 
 #include "ipc/daemon.h"
 
+#include "common_event_manager.h"
+#include "common_event_support.h"
 #include "mountpoint/mount_manager.h"
-#include "os_account_manager.h"
 #include "system_ability_definition.h"
 #include "utils_log.h"
 
@@ -42,17 +43,15 @@ void Daemon::PublishSA()
 
 void Daemon::RegisterOsAccount()
 {
-    OHOS::AccountSA::OsAccountSubscribeInfo osAccountSubscribeInfo;
-    osAccountSubscribeInfo.SetOsAccountSubscribeType(OHOS::AccountSA::OS_ACCOUNT_SUBSCRIBE_TYPE::ACTIVED);
-    osAccountSubscribeInfo.SetName("distributed_file_service");
-
-    subScriber_ = std::make_shared<OsAccountObserver>(osAccountSubscribeInfo);
-    int ret = OHOS::AccountSA::OsAccountManager::SubscribeOsAccount(subScriber_);
-    if (ret != 0) {
-        LOGE("register os account fail ret %{public}d", ret);
-        return;
-    }
-    LOGI("register os account success, ret %{public}d", ret);
+    LOGI("register os account enter");
+    EventFwk::MatchingSkills matchingSkills;
+    matchingSkills.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_USER_ADDED);
+    matchingSkills.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_USER_REMOVED);
+    matchingSkills.AddEvent(EventFwk::CommonEventSupport::COMMON_EVENT_USER_SWITCHED);
+    EventFwk::CommonEventSubscribeInfo subscribeInfo(matchingSkills);
+    subScriber_ = std::make_shared<OsAccountObserver>(subscribeInfo);
+    bool subRet = EventFwk::CommonEventManager::SubscribeCommonEvent(subScriber_);
+    LOGI("register os account success %{public}d", subRet);
 }
 
 void Daemon::OnStart()
@@ -79,10 +78,8 @@ void Daemon::OnStop()
     LOGI("Begin to stop");
     state_ = ServiceRunningState::STATE_NOT_START;
     registerToService_ = false;
-    int32_t ret = OHOS::AccountSA::OsAccountManager::UnsubscribeOsAccount(subScriber_);
-    if (ret != 0) {
-        LOGI("UnsubscribeOsAccount failed, ret %{public}d", ret);
-    }
+    bool subRet = EventFwk::CommonEventManager::UnSubscribeCommonEvent(subScriber_);
+    LOGI("unregister os account success %{public}d", subRet);
     subScriber_ = nullptr;
     LOGI("Stop finished successfully");
 }
diff --git a/services/distributedfiledaemon/src/multiuser/os_account_observer.cpp b/services/distributedfiledaemon/src/multiuser/os_account_observer.cpp
index accf450405916ba5ee8052b5e37555a3db837cdf..592f432d3e5072077447f1aa180357b963b9804b 100644
--- a/services/distributedfiledaemon/src/multiuser/os_account_observer.cpp
+++ b/services/distributedfiledaemon/src/multiuser/os_account_observer.cpp
@@ -15,6 +15,8 @@
 
 #include "multiuser/os_account_observer.h"
 
+#include "common_event_manager.h"
+#include "common_event_support.h"
 #include "device/device_manager_agent.h"
 #include "dfsu_mount_argument_descriptors.h"
 #include "utils_log.h"
@@ -29,8 +31,8 @@ static const std::string ACCOUNT_LESS = "non_account";
 static constexpr int DEFAULT_ACCOUNT = 100;
 } // namespace
 
-OsAccountObserver::OsAccountObserver(const AccountSA::OsAccountSubscribeInfo &subscribeInfo)
-    : OsAccountSubscriber(subscribeInfo)
+OsAccountObserver::OsAccountObserver(const EventFwk::CommonEventSubscribeInfo &subscribeInfo)
+    : EventFwk::CommonEventSubscriber(subscribeInfo)
 {
     LOGI("init first to create network of default user");
     lock_guard<mutex> lock(serializer_);
@@ -52,20 +54,27 @@ void OsAccountObserver::AddMPInfo(const int id, const std::string &relativePath)
     mountPoints_[id].emplace_back(smp);
 }
 
-void OsAccountObserver::OnAccountsChanged(const int &id)
+void OsAccountObserver::OnReceiveEvent(const EventFwk::CommonEventData &eventData)
 {
-    LOGI("user id changed to %{public}d", id);
-    lock_guard<mutex> lock(serializer_);
-    if (curUsrId != -1) {
-        // first stop curUsrId network
-        RemoveMPInfo(curUsrId);
-    }
+    const AAFwk::Want& want = eventData.GetWant();
+    std::string action = want.GetAction();
+    LOGI("AccountSubscriber: OnReceiveEvent action:%{public}s.", action.c_str());
+    if (action == EventFwk::CommonEventSupport::COMMON_EVENT_USER_SWITCHED) {
+        int32_t id = eventData.GetCode();
+        LOGI("user id changed to %{public}d", id);
+        lock_guard<mutex> lock(serializer_);
+        if (curUsrId != -1) {
+            // first stop curUsrId network
+            RemoveMPInfo(curUsrId);
+        }
 
-    // then start new network
-    curUsrId = id;
-    AddMPInfo(id, SAME_ACCOUNT);
-    AddMPInfo(id, ACCOUNT_LESS);
-    LOGI("user id %{public}d, add network done", curUsrId);
+        // then start new network
+        curUsrId = id;
+        AddMPInfo(id, SAME_ACCOUNT);
+        AddMPInfo(id, ACCOUNT_LESS);
+        LOGI("user id %{public}d, add network done", curUsrId);
+    }
+    LOGI("user changed OnReceiveEvent");
 }
 
 void OsAccountObserver::RemoveMPInfo(const int id)