diff --git a/libsearch/plugininterface/search-task-plugin-iface.h b/libsearch/plugininterface/search-task-plugin-iface.h
index c905355..24ee89f 100644
--- a/libsearch/plugininterface/search-task-plugin-iface.h
+++ b/libsearch/plugininterface/search-task-plugin-iface.h
@@ -21,6 +21,7 @@ public:
     virtual void stop() = 0;
 Q_SIGNALS:
     void searchFinished(size_t searchId);
+    void searchError(size_t searchId, QString msg = {});
 };
 }
 Q_DECLARE_INTERFACE(UkuiSearch::SearchTaskPluginIface, SearchTaskPluginIface_iid)
diff --git a/libsearch/pluginmanage/search-task-plugin-manager.cpp b/libsearch/pluginmanage/search-task-plugin-manager.cpp
index 19e21ef..7867137 100644
--- a/libsearch/pluginmanage/search-task-plugin-manager.cpp
+++ b/libsearch/pluginmanage/search-task-plugin-manager.cpp
@@ -39,6 +39,7 @@ bool SearchTaskPluginManager::registerPlugin(SearchTaskPluginIface *plugin)
     }
     m_loadedPlugin.insert(plugin->getCustomSearchType(), plugin);
     connect(plugin, &SearchTaskPluginIface::searchFinished, this, &SearchTaskPluginManager::searchFinished);
+    connect(plugin, &SearchTaskPluginIface::searchError, this, &SearchTaskPluginManager::searchError);
     return true;
 }
 
@@ -46,6 +47,7 @@ bool SearchTaskPluginManager::registerBuildinPlugin(SearchTaskPluginIface *plugi
 {
     m_buildinPlugin.insert(static_cast<size_t>(plugin->getSearchType()), plugin);
     connect(plugin, &SearchTaskPluginIface::searchFinished, this, &SearchTaskPluginManager::searchFinished);
+    connect(plugin, &SearchTaskPluginIface::searchError, this, &SearchTaskPluginManager::searchError);
     return true;
 }
 
@@ -59,11 +61,13 @@ void SearchTaskPluginManager::pluginSearch(SearchType searchType, std::shared_pt
     qDebug() << "search type" << type;
     if(m_buildinPlugin.contains(type)) {
         if(!m_buildinPlugin.value(type)->isEnable()) {
-            Q_EMIT this->pluginDisable(searchController.get()->getCurrentSearchId());
+            Q_EMIT this->searchError(searchController.get()->getCurrentSearchId(), tr("plugin type: %1, is disabled!").arg(type));
             return;
         }
         qDebug() << "start search";
         m_buildinPlugin.value(type)->startSearch(searchController);
+    } else {
+        Q_EMIT this->searchError(searchController.get()->getCurrentSearchId(), tr("plugin type: %1, is not registered!").arg(type));
     }
 }
 
@@ -71,9 +75,11 @@ void SearchTaskPluginManager::pluginSearch(QString customSearchType, std::shared
 {
     if(m_loadedPlugin.contains(customSearchType)) {
         if(!m_loadedPlugin.value(customSearchType)->isEnable()) {
-            Q_EMIT this->pluginDisable(searchController.get()->getCurrentSearchId());
+            Q_EMIT this->searchError(searchController.get()->getCurrentSearchId(), tr("plugin type: %1, is disabled!").arg(customSearchType));
             return;
         }
         m_loadedPlugin.value(customSearchType)->startSearch(searchController);
+    } else {
+        Q_EMIT this->searchError(searchController.get()->getCurrentSearchId(), tr("plugin type: %1, is not registered!").arg(customSearchType));
     }
 }
diff --git a/libsearch/pluginmanage/search-task-plugin-manager.h b/libsearch/pluginmanage/search-task-plugin-manager.h
index 0c6f751..d94087f 100644
--- a/libsearch/pluginmanage/search-task-plugin-manager.h
+++ b/libsearch/pluginmanage/search-task-plugin-manager.h
@@ -17,7 +17,8 @@ public:
     void pluginSearch(QString customSearchType, std::shared_ptr<SearchController> searchController);
 Q_SIGNALS:
     void searchFinished(size_t searchId);
-    void pluginDisable(size_t searchId);
+    void searchError(size_t searchId, QString msg);
+
 private:
     explicit SearchTaskPluginManager(QObject *parent = nullptr);
 
diff --git a/libsearch/searchinterface/searchtasks/file-content-search-task.cpp b/libsearch/searchinterface/searchtasks/file-content-search-task.cpp
index c6507c3..ea9e272 100644
--- a/libsearch/searchinterface/searchtasks/file-content-search-task.cpp
+++ b/libsearch/searchinterface/searchtasks/file-content-search-task.cpp
@@ -81,11 +81,6 @@ void FileContentSearchTask::stop()
 
 }
 
-void FileContentSearchTask::sendFinishSignal(size_t searchId)
-{
-    Q_EMIT sendFinishSignal(searchId);
-}
-
 FileContentSearchWorker::FileContentSearchWorker(FileContentSearchTask *fileContentSearchTask, std::shared_ptr<SearchController> searchController)
 {
     m_fileContentSearchTask = fileContentSearchTask;
@@ -114,11 +109,21 @@ void FileContentSearchWorker::run()
 
     } else {
         qWarning() << "content index incomplete";
+        sendErrorMsg(QObject::tr("Content index incomplete."));
+
+        finished = false;
     }
 
     if (finished) QMetaObject::invokeMethod(m_fileContentSearchTask, "searchFinished", Q_ARG(size_t, m_currentSearchId));
 }
 
+void FileContentSearchWorker::sendErrorMsg(const QString &msg)
+{
+    QMetaObject::invokeMethod(m_fileContentSearchTask, "searchError",
+                              Q_ARG(size_t, m_currentSearchId),
+                              Q_ARG(QString, msg));
+}
+
 bool FileContentSearchWorker::execSearch()
 {
     try {
@@ -150,6 +155,7 @@ bool FileContentSearchWorker::execSearch()
 
     } catch (const Xapian::Error &e) {
         qWarning() << QString::fromStdString(e.get_description());
+        sendErrorMsg("Xapian Error: " + QString::fromStdString(e.get_description()));
         return false;
     }
 }
diff --git a/libsearch/searchinterface/searchtasks/file-content-search-task.h b/libsearch/searchinterface/searchtasks/file-content-search-task.h
index a8fc358..a77d9f2 100644
--- a/libsearch/searchinterface/searchtasks/file-content-search-task.h
+++ b/libsearch/searchinterface/searchtasks/file-content-search-task.h
@@ -36,8 +36,6 @@ public:
     void startSearch(std::shared_ptr<SearchController> searchController) override;
     void stop() override;
 
-    Q_INVOKABLE void sendFinishSignal(size_t searchId);
-
 private:
     QThreadPool *m_pool = nullptr;
 };
@@ -55,6 +53,8 @@ private:
     bool execSearch();
     inline Xapian::Query createQuery();
 
+    void sendErrorMsg(const QString &msg);
+
 private:
     FileContentSearchTask *m_fileContentSearchTask = nullptr;
     std::shared_ptr<SearchController> m_searchController;
diff --git a/libsearch/searchinterface/searchtasks/file-search-task.cpp b/libsearch/searchinterface/searchtasks/file-search-task.cpp
index a332bb7..241d019 100644
--- a/libsearch/searchinterface/searchtasks/file-search-task.cpp
+++ b/libsearch/searchinterface/searchtasks/file-search-task.cpp
@@ -144,11 +144,20 @@ bool FileSearchWorker::searchWithIndex()
 
     } catch(const Xapian::Error &e) {
         qWarning() << QString::fromStdString(e.get_description());
+        sendErrorMsg("Xapian Error: " + QString::fromStdString(e.get_description()));
+        return false;
     }
 
     return true;
 }
 
+void FileSearchWorker::sendErrorMsg(const QString &msg)
+{
+    QMetaObject::invokeMethod(m_FileSearchTask, "searchError",
+                              Q_ARG(size_t, m_currentSearchId),
+                              Q_ARG(QString, msg));
+}
+
 bool FileSearchWorker::directSearch()
 {
     unsigned int maxResults = m_searchController->maxResults();
diff --git a/libsearch/searchinterface/searchtasks/file-search-task.h b/libsearch/searchinterface/searchtasks/file-search-task.h
index bbbe18a..428b603 100644
--- a/libsearch/searchinterface/searchtasks/file-search-task.h
+++ b/libsearch/searchinterface/searchtasks/file-search-task.h
@@ -57,6 +57,7 @@ private:
     //同上
     bool directSearch();
     Xapian::Query creatQueryForFileSearch();
+    void sendErrorMsg(const QString &msg);
 
 private:
     FileSearchTask *m_FileSearchTask;
diff --git a/libsearch/searchinterface/ukui-search-task.cpp b/libsearch/searchinterface/ukui-search-task.cpp
index 312256b..e272667 100644
--- a/libsearch/searchinterface/ukui-search-task.cpp
+++ b/libsearch/searchinterface/ukui-search-task.cpp
@@ -9,6 +9,7 @@ UkuiSearchTaskPrivate::UkuiSearchTaskPrivate(UkuiSearchTask *parent)
 {
     m_searchCotroller = std::shared_ptr<SearchController>(new SearchController());
     connect(SearchTaskPluginManager::getInstance(), &SearchTaskPluginManager::searchFinished, this, &UkuiSearchTaskPrivate::searchFinished);
+    connect(SearchTaskPluginManager::getInstance(), &SearchTaskPluginManager::searchError, q, &UkuiSearchTask::searchError);
 }
 
 UkuiSearchTaskPrivate::~UkuiSearchTaskPrivate()
diff --git a/libsearch/searchinterface/ukui-search-task.h b/libsearch/searchinterface/ukui-search-task.h
index 7b27ca8..e9ed5eb 100644
--- a/libsearch/searchinterface/ukui-search-task.h
+++ b/libsearch/searchinterface/ukui-search-task.h
@@ -31,6 +31,7 @@ public:
 
 Q_SIGNALS:
     void searchFinished(size_t searchId);
+    void searchError(size_t searchId, QString msg);
 
 private:
     UkuiSearchTaskPrivate* d = nullptr;