diff --git a/search-ukcc-plugin/search.cpp b/search-ukcc-plugin/search.cpp
index e39e2a6..a5e093c 100644
--- a/search-ukcc-plugin/search.cpp
+++ b/search-ukcc-plugin/search.cpp
@@ -19,6 +19,10 @@ Search::Search()
                                      QDBusConnection::sessionBus(),
                                      this);
 
+    if (m_interface->isValid()) {
+        connect(m_interface, SIGNAL(indexDirsChanged()), this, SLOT(refreshSearchDirsUi()));
+    }
+
     m_setSearchDirInterface = new QDBusInterface("com.ukui.search.fileindex.service",
                                                  "/org/ukui/search/fileindex",
                                                  "org.ukui.search.fileindex",
@@ -386,6 +390,17 @@ void Search::initUi()
     m_mainLyt->setContentsMargins(0, 0, 0, 0);
 }
 
+void Search::refreshSearchDirsUi()
+{
+    qWarning() << "==========refreshUi!!!!";
+    while (m_searchDirLyt->count() - 1) {
+        QWidget *widget = m_searchDirLyt->itemAt(m_searchDirLyt->count() - 1)->widget();
+        m_searchDirLyt->removeWidget(widget);
+        widget->deleteLater();
+    }
+    initSearchDirs();
+}
+
 void Search::initFileDialog()
 {
     //添加黑名单对话框
diff --git a/search-ukcc-plugin/search.h b/search-ukcc-plugin/search.h
index 5f362f4..bc54ede 100644
--- a/search-ukcc-plugin/search.h
+++ b/search-ukcc-plugin/search.h
@@ -62,6 +62,9 @@ public:
     QIcon icon() const Q_DECL_OVERRIDE;
     bool isEnable() const Q_DECL_OVERRIDE;
 
+public Q_SLOTS:
+    void refreshSearchDirsUi();
+
 private:
     QWidget * m_pluginWidget = nullptr;
     QString m_plugin_name = "";
diff --git a/ukui-search-service-dir-manager/dirwatcher/dir-watcher.cpp b/ukui-search-service-dir-manager/dirwatcher/dir-watcher.cpp
index 01a6755..206a367 100644
--- a/ukui-search-service-dir-manager/dirwatcher/dir-watcher.cpp
+++ b/ukui-search-service-dir-manager/dirwatcher/dir-watcher.cpp
@@ -66,15 +66,21 @@ void DirWatcher::updateIndexableDirs()
     m_indexableDirList = m_qSettings->value(INDEXABLE_DIR_VALUE).toStringList();
     m_qSettings->endGroup();
     QStringList indexableDirs = m_indexableDirList;
+    bool changed(false);
     for (const QString& dir : m_indexableDirList) {
         if (!QFileInfo(dir).isDir()) {
             indexableDirs.removeAll(dir);
+            changed = true;
         }
     }
-    m_qSettings->beginGroup(INDEXABLE_DIR_VALUE);
-    m_qSettings->setValue(INDEXABLE_DIR_VALUE, indexableDirs);
-    m_qSettings->endGroup();
-    m_indexableDirList = indexableDirs;
+
+    if (changed) {
+        m_qSettings->beginGroup(INDEXABLE_DIR_VALUE);
+        m_qSettings->setValue(INDEXABLE_DIR_VALUE, indexableDirs);
+        m_qSettings->endGroup();
+        m_indexableDirList = indexableDirs;
+        Q_EMIT this->indexDirsChanged();
+    }
 }
 
 QStringList DirWatcher::currentBlackListOfIndex()
@@ -249,8 +255,9 @@ void DirWatcher::mountRemoveCallback(GVolumeMonitor *monitor, GMount *gmount, Di
     qDebug() << "Mount Removed";
     pThis->handleDisk();
     QMutexLocker locker(&s_mutex);
-    //处理u盘设备(由于udisk2信号连不上，不生效）
+    //处理u盘设备
     if (pThis->m_removedUDiskDevice != NULL) {
+        pThis->updateIndexableDirs();//更新索引名单，排除失效目录
         pThis->m_currentUDiskDeviceInfo.remove(pThis->m_removedUDiskDevice);
         qDebug() << "m_currentUDiskDeviceInfo(after remove):" << pThis->m_currentUDiskDeviceInfo;
         pThis->m_removedUDiskDevice = "";
diff --git a/ukui-search-service-dir-manager/dirwatcher/dir-watcher.h b/ukui-search-service-dir-manager/dirwatcher/dir-watcher.h
index d702c23..2e12f09 100644
--- a/ukui-search-service-dir-manager/dirwatcher/dir-watcher.h
+++ b/ukui-search-service-dir-manager/dirwatcher/dir-watcher.h
@@ -106,6 +106,7 @@ Q_SIGNALS:
     void udiskRemoved();
     void appendIndexItem(const QString&, const QStringList&);
     void removeIndexItem(const QString&);
+    void indexDirsChanged();
 };
 
 #endif // MOUNTDISKLISTENER_H