diff --git a/src/dcc-update-plugin/operation/updatemodel.cpp b/src/dcc-update-plugin/operation/updatemodel.cpp
index 1e68d221..98c1cf76 100644
--- a/src/dcc-update-plugin/operation/updatemodel.cpp
+++ b/src/dcc-update-plugin/operation/updatemodel.cpp
@@ -46,6 +46,7 @@ UpdateModel::UpdateModel(QObject* parent)
     , m_updateDisabledIcon("")
     , m_updateDisabledTips("")
     , m_batterIsOK(false)
+    , m_postUpdateCheckCompleted(true) // 非 Wayland 默认为 true，Wayland 下检查完成后再置为 true
     , m_lastStatus(Default)
     , m_showCheckUpdate(false)
     , m_checkUpdateIcon("")
@@ -222,6 +223,16 @@ void UpdateModel::setBatterIsOK(bool ok)
     Q_EMIT batterIsOKChanged(ok);
 }
 
+void UpdateModel::setPostUpdateCheckCompleted(bool completed)
+{
+    if (m_postUpdateCheckCompleted == completed) {
+        return;
+    }
+
+    m_postUpdateCheckCompleted = completed;
+    Q_EMIT postUpdateCheckCompletedChanged(completed);
+}
+
 void UpdateModel::setForceUpdateText(const QString& updateTime, int lastoreStatus)
 {
     if (!updateTime.isEmpty()) {
diff --git a/src/dcc-update-plugin/operation/updatemodel.h b/src/dcc-update-plugin/operation/updatemodel.h
index 7d1bb6a8..efb7b369 100644
--- a/src/dcc-update-plugin/operation/updatemodel.h
+++ b/src/dcc-update-plugin/operation/updatemodel.h
@@ -100,6 +100,7 @@ class UpdateModel : public QObject
     Q_PROPERTY(bool upgradeDeliveryEnable READ upgradeDeliveryEnable NOTIFY upgradeDeliveryEnableChanged FINAL)
     Q_PROPERTY(bool p2pUpdateEnabled READ isP2PUpdateEnabled NOTIFY p2pUpdateEnableStateChanged FINAL)
     Q_PROPERTY(bool forceUpdate READ forceUpdate NOTIFY forceUpdateChanged FINAL)
+    Q_PROPERTY(bool postUpdateCheckCompleted READ postUpdateCheckCompleted NOTIFY postUpdateCheckCompletedChanged FINAL)
     Q_PROPERTY(UpdateHistoryModel *historyModel READ historyModel NOTIFY historyModelChanged FINAL)
 
 
@@ -261,6 +262,9 @@ class UpdateModel : public QObject
     bool isPrivateUpdate() const { return m_isPrivateUpdate; }
     void setIsPrivateUpdate(bool isPrivateUpdate);
 
+    bool postUpdateCheckCompleted() const { return m_postUpdateCheckCompleted; }
+    void setPostUpdateCheckCompleted(bool completed);
+
     UpdatesStatus updateStatus(ControlPanelType type) const;
     UpdatesStatus updateStatus(UpdateType type) const;
     QList<UpdateType> updateTypesList(ControlPanelType type) const;
@@ -419,6 +423,7 @@ public slots:
     void updateInfoChanged(UpdateType);
     void isUpdatableChanged(const bool isUpdatablePackages);
     void isPrivateUpdateChanged(const bool isPrivateUpdate);
+    void postUpdateCheckCompletedChanged(bool completed);
     void updateStatusChanged(ControlPanelType, UpdatesStatus);
     void controlTypeChanged();
     void lastErrorChanged(UpdatesStatus, UpdateErrorType);
@@ -457,6 +462,7 @@ public slots:
     QString m_updateDisabledIcon;
     QString m_updateDisabledTips;
     bool m_batterIsOK;
+    bool m_postUpdateCheckCompleted;
     int m_lastStatus;
     bool m_immutableAutoRecovery;
 
diff --git a/src/dcc-update-plugin/operation/updatework.cpp b/src/dcc-update-plugin/operation/updatework.cpp
index 9de67a43..17f732dd 100644
--- a/src/dcc-update-plugin/operation/updatework.cpp
+++ b/src/dcc-update-plugin/operation/updatework.cpp
@@ -132,6 +132,9 @@ UpdateWorker::UpdateWorker(UpdateModel* model, QObject* parent)
     , m_backupJob(nullptr)
     , m_installPackageJob(nullptr)
     , m_removePackageJob(nullptr)
+    , m_checkSystemJob(nullptr)
+    , m_updateMode(0)
+    , m_currentCheckStage(0)
 {
     qCDebug(logDccUpdatePlugin) << "Initializing UpdateWorker";
     qRegisterMetaType<UpdatesStatus>("UpdatesStatus");
@@ -151,6 +154,7 @@ UpdateWorker::~UpdateWorker()
     deleteJob(m_backupJob);
     deleteJob(m_installPackageJob);
     deleteJob(m_removePackageJob);
+    deleteJob(m_checkSystemJob);
 
     if (m_lastoreHeartBeatTimer != nullptr) {
         if (m_lastoreHeartBeatTimer->isActive()) {
@@ -774,6 +778,11 @@ void UpdateWorker::doUpgrade(int updateTypes, bool doBackup)
     cleanLaStoreJob(m_distUpgradeJob);
     cleanLaStoreJob(m_backupJob);
 
+    if (DGuiApplicationHelper::testAttribute(DGuiApplicationHelper::IsWaylandPlatform)) {
+        m_updateMode = updateTypes;
+        m_model->setPostUpdateCheckCompleted(false);
+    }
+
     QDBusPendingCall call = m_updateInter->DistUpgradePartly(updateTypes, doBackup);
     QDBusPendingCallWatcher* watcher = new QDBusPendingCallWatcher(call, this);
     connect(watcher, &QDBusPendingCallWatcher::finished, this, [this, updateTypes, watcher, doBackup] {
@@ -1711,6 +1720,13 @@ void UpdateWorker::onDistUpgradeStatusChanged(const QString& status)
         if (updateStatus == UpgradeComplete) {
             cleanLaStoreJob(m_distUpgradeJob);
             updateSystemVersion();
+
+            // TODO: treeland 环境下重启后无法启动 dde-update 进程, 这里直接在安装更新完成后，进行检查：
+            // 串行执行: CheckUpgrade(stage=1, CSS_BeforeLogin) → CheckUpgrade(stage=2, CSS_AfterLogin) → 标记完成
+            if (DGuiApplicationHelper::testAttribute(DGuiApplicationHelper::IsWaylandPlatform)) {
+                doCheckSystemOnWayland(1);
+            }
+
         } else {
             if (updateStatus == UpgradeFailed && m_distUpgradeJob) {
                 const QString& description = m_distUpgradeJob->description();
@@ -1858,3 +1874,68 @@ void UpdateWorker::cleanUpgradeDeliveryCache()
         }
     });
 }
+
+void UpdateWorker::doCheckSystemOnWayland(int stage)
+{
+    qCInfo(logDccUpdatePlugin) << "treeland: start check system, stage:" << stage;
+    m_currentCheckStage = stage;
+
+    QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(m_updateInter->CheckUpgrade(m_updateMode, stage), this);
+    connect(watcher, &QDBusPendingCallWatcher::finished, this, [this, watcher] {
+        QDBusPendingReply<QDBusObjectPath> reply = *watcher;
+        if (reply.isError()) {
+            qCWarning(logDccUpdatePlugin) << "CheckUpgrade stage" << m_currentCheckStage
+                                         << "failed:" << reply.error().message();
+            // 即使检查失败也标记完成，不阻塞后续流程
+            m_model->setPostUpdateCheckCompleted(true);
+        } else {
+            const QString jobPath = reply.value().path();
+            qCInfo(logDccUpdatePlugin) << "Check system job created:" << jobPath << "stage:" << m_currentCheckStage;
+            setCheckSystemJob(jobPath);
+        }
+        watcher->deleteLater();
+    });
+}
+
+void UpdateWorker::setCheckSystemJob(const QString& jobPath)
+{
+    qCInfo(logDccUpdatePlugin) << "Create check system job, path:" << jobPath;
+    if (m_checkSystemJob || jobPath.isEmpty()) {
+        qCWarning(logDccUpdatePlugin) << "Check system job already exists or path is empty";
+        m_model->setPostUpdateCheckCompleted(true);
+        return;
+    }
+
+    m_checkSystemJob = new UpdateJobDBusProxy(jobPath, this);
+    connect(m_checkSystemJob, &UpdateJobDBusProxy::StatusChanged, this, &UpdateWorker::onCheckSystemJobStatusChanged);
+    // 主动触发一次状态同步，避免 job 在连接信号前已完成
+    onCheckSystemJobStatusChanged(m_checkSystemJob->status());
+}
+
+void UpdateWorker::onCheckSystemJobStatusChanged(const QString& status)
+{
+    qCInfo(logDccUpdatePlugin) << "Check system job status changed, stage:" << m_currentCheckStage << "status:" << status;
+
+    // 仅关注终态：failed / succeed / end
+    if (status == "failed" || status == "succeed" || status == "end") {
+        cleanLaStoreJob(m_checkSystemJob);
+
+        if (m_currentCheckStage == 1) {
+            if (status == "failed") {
+                qCWarning(logDccUpdatePlugin) << "CheckUpgrade stage CSS_BeforeLogin failed, cannot continue to CSS_AfterLogin";
+                m_model->setPostUpdateCheckCompleted(true);
+                return;
+            } else if (status == "end") {
+                // CSS_BeforeLogin 阶段完成，继续 CSS_AfterLogin 阶段
+                qCInfo(logDccUpdatePlugin) << "treeland: CSS_BeforeLogin completed, starting CSS_AfterLogin";
+                QTimer::singleShot(1000, this, [this] {
+                    doCheckSystemOnWayland(2);
+                });
+            }
+        } else {
+            // CSS_AfterLogin 阶段完成，标记检查完成
+            qCInfo(logDccUpdatePlugin) << "treeland: CSS_AfterLogin completed, mark check completed";
+            m_model->setPostUpdateCheckCompleted(true);
+        }
+    }
+}
diff --git a/src/dcc-update-plugin/operation/updatework.h b/src/dcc-update-plugin/operation/updatework.h
index 0b594ef8..17263ee6 100644
--- a/src/dcc-update-plugin/operation/updatework.h
+++ b/src/dcc-update-plugin/operation/updatework.h
@@ -59,6 +59,8 @@ class UpdateWorker : public QObject
     Q_INVOKABLE void setShutdownAndUpgrade(bool isShutdownUpdate = false);
     void setBackupJob(const QString& jobPath);
     void setDistUpgradeJob(const QString& jobPath);
+    void doCheckSystemOnWayland(int stage);
+    void setCheckSystemJob(const QString& jobPath);
     void updateSystemVersion();
 
     // 更新设置-更新类型
@@ -133,6 +135,7 @@ public Q_SLOTS:
     void onDistUpgradeStatusChanged(const QString& status);
     void onInstallPackageStatusChanged(const QString& value);
     void onRemovePackageStatusChanged(const QString& value);
+    void onCheckSystemJobStatusChanged(const QString& status);
 
 Q_SIGNALS:
     void requestCloseTestingChannel();
@@ -163,6 +166,10 @@ public Q_SLOTS:
     QPointer<UpdateJobDBusProxy> m_backupJob;
     QPointer<UpdateJobDBusProxy> m_installPackageJob;
     QPointer<UpdateJobDBusProxy> m_removePackageJob;
+    QPointer<UpdateJobDBusProxy> m_checkSystemJob;
+
+    int m_updateMode;
+    int m_currentCheckStage; // 当前 check system 阶段: 1=CSS_BeforeLogin, 2=CSS_AfterLogin
 };
 
 #endif // UPDATEWORK_H
diff --git a/src/dcc-update-plugin/qml/UpdateMain.qml b/src/dcc-update-plugin/qml/UpdateMain.qml
index f543f44f..5596e7c1 100644
--- a/src/dcc-update-plugin/qml/UpdateMain.qml
+++ b/src/dcc-update-plugin/qml/UpdateMain.qml
@@ -199,6 +199,7 @@ DccObject {
             updateTips: qsTr("To ensure proper functioning of your system and applications, please restart your computer after the update")
             btnActions: [ qsTr("Reboot now") ]
             updateListcheck: false
+            busyState: !dccData.model().postUpdateCheckCompleted
 
             onBtnClicked: function(index, updateType) {
                 dccData.work().reStart()
@@ -318,8 +319,12 @@ DccObject {
                     if (dccData.model().isPrivateUpdate) {
                         dccData.work().doUpgrade(updateListModels.getAllUpdateType(), true)
                     } else {
-                        updateSelectLoader.updateType = updateType
-                        updateSelectLoader.active = true
+                        if (DccApp.isTreeland()) {
+                            dccData.work().doUpgrade(updateType, true)
+                        } else {
+                            updateSelectLoader.updateType = updateType
+                            updateSelectLoader.active = true
+                        }
                     }
                 } else if (index === 1) {
                     dccData.work().reCheckWithUi();
diff --git a/src/dde-update/misc/dde-update-autostart.desktop b/src/dde-update/misc/dde-update-autostart.desktop
index 80b9345e..d4ff66cd 100644
--- a/src/dde-update/misc/dde-update-autostart.desktop
+++ b/src/dde-update/misc/dde-update-autostart.desktop
@@ -2,5 +2,5 @@
 Name=dde-update
 Type=Application
 NoDisplay=true
-Exec=sh -c 'if [ -f /tmp/deepin_update_option.json ]; then /usr/bin/dde-update ; fi'
+Exec=sh -c 'if [ -f /tmp/deepin_update_option.json ] && [ "$XDG_SESSION_TYPE" != "wayland" ]; then /usr/bin/dde-update ; fi'
 X-Deepin-Vendor=deepin
\ No newline at end of file