diff --git a/libsearch/pluginmanage/plugin-manager.cpp b/libsearch/pluginmanage/plugin-manager.cpp
index b0f4611..522a249 100644
--- a/libsearch/pluginmanage/plugin-manager.cpp
+++ b/libsearch/pluginmanage/plugin-manager.cpp
@@ -37,11 +37,6 @@ PluginManager *PluginManager::getInstance()
     return global_instance;
 }
 
-void PluginManager::setPluginEnableByName(const QString &pluginName, bool enable)
-{
-    m_hash.value(pluginName)->setEnable(enable);
-}
-
 PluginManager::PluginManager(QObject *parent) : QObject(parent)
 {
     QDir pluginsDir(PLUGIN_INSTALL_DIRS);
@@ -73,12 +68,11 @@ PluginManager::PluginManager(QObject *parent) : QObject(parent)
         PluginInterface *piface = dynamic_cast<PluginInterface*>(plugin);
         if (!piface)
             continue;
-        m_hash.insert(piface->name(), piface);
         switch (piface->pluginType()) {
         case PluginInterface::PluginType::SearchPlugin: {
             auto p = dynamic_cast<SearchPluginIface *>(plugin);
-            if (!SearchPluginManager::getInstance()->registerExternalPlugin(p, pluginsDir.absoluteFilePath(fileName))) {
-                m_hash.erase(m_hash.find(piface->name()));
+            if(!SearchPluginManager::getInstance()->registerExternalPlugin(p, pluginsDir.absoluteFilePath(fileName))) {
+                delete p;
             }
             break;
         }
@@ -96,6 +90,4 @@ PluginManager::PluginManager(QObject *parent) : QObject(parent)
 
 PluginManager::~PluginManager()
 {
-    m_hash.clear();
-    SearchPluginManager::getInstance()->close();
 }
diff --git a/libsearch/pluginmanage/plugin-manager.h b/libsearch/pluginmanage/plugin-manager.h
index 8ef4649..af1958a 100644
--- a/libsearch/pluginmanage/plugin-manager.h
+++ b/libsearch/pluginmanage/plugin-manager.h
@@ -41,16 +41,11 @@ public:
 Q_SIGNALS:
     void pluginStateChanged(const QString &pluginName, bool enable);
 
-public Q_SLOTS:
-    void setPluginEnableByName(const QString &pluginName, bool enable);
-
 private:
     explicit PluginManager(QObject *parent = nullptr);
 
     ~PluginManager();
 
-    QHash<QString, PluginInterface*> m_hash;
-
 };
 }
 
diff --git a/libsearch/pluginmanage/search-plugin-manager.cpp b/libsearch/pluginmanage/search-plugin-manager.cpp
index 99896cd..6990591 100644
--- a/libsearch/pluginmanage/search-plugin-manager.cpp
+++ b/libsearch/pluginmanage/search-plugin-manager.cpp
@@ -58,6 +58,10 @@ bool SearchPluginManager::registerPlugin(UkuiSearch::SearchPluginIface *plugin)
 
     if (m_map.end() != m_map.find(plugin->name())) {
         qWarning() << "the plugin:" << plugin->name() << "has been registered.";
+        if (plugin) {
+            delete plugin;
+            plugin = nullptr;
+        }
         return res;
     }
 
@@ -440,11 +444,6 @@ SearchPluginIface *SearchPluginManager::getPlugin(const QString &pluginId)
     return m_map[pluginId];
 }
 
-void SearchPluginManager::close()
-{
-    this->deleteLater();
-}
-
 SearchPluginManager::~SearchPluginManager()
 {
     for (auto iter = m_map.begin(); iter != m_map.end();) {
diff --git a/libsearch/pluginmanage/search-plugin-manager.h b/libsearch/pluginmanage/search-plugin-manager.h
index c55e7dc..d441ffa 100644
--- a/libsearch/pluginmanage/search-plugin-manager.h
+++ b/libsearch/pluginmanage/search-plugin-manager.h
@@ -56,8 +56,6 @@ public:
     const QList<PluginInfo> getPluginIds();
     SearchPluginIface *getPlugin(const QString &pluginId);
 
-    void close();
-
 private:
     explicit SearchPluginManager(QObject *parent = nullptr);
     ~SearchPluginManager();