diff --git a/libsearch/appsearch/app-match.cpp b/libsearch/appsearch/app-match.cpp
index 91ca946..d4f6a44 100644
--- a/libsearch/appsearch/app-match.cpp
+++ b/libsearch/appsearch/app-match.cpp
@@ -25,6 +25,13 @@ AppMatch::AppMatch(QObject *parent) : QObject(parent)
 {
 
     this->getDesktopFilePath();
+
+    m_watchAppDir=new QFileSystemWatcher(this);
+    m_watchAppDir->addPath("/usr/share/applications/");
+    connect(m_watchAppDir,&QFileSystemWatcher::directoryChanged,[this](){
+        this->getDesktopFilePath();
+            });
+
     qDBusRegisterMetaType<QMap<QString,QString>>();
     qDBusRegisterMetaType<QList<QMap<QString,QString>>>();
     m_interFace=new QDBusInterface ("com.kylin.softwarecenter.getsearchresults", "/com/kylin/softwarecenter/getsearchresults",
@@ -41,6 +48,10 @@ AppMatch::~AppMatch(){
         delete m_interFace;
         m_interFace=NULL;
     }
+    if(m_watchAppDir){
+        delete m_watchAppDir;
+        m_watchAppDir=NULL;
+    }
 }
 
 QStringList AppMatch::startMatchApp(QString input){
diff --git a/libsearch/appsearch/app-match.h b/libsearch/appsearch/app-match.h
index 44d4ec2..c41ffc7 100644
--- a/libsearch/appsearch/app-match.h
+++ b/libsearch/appsearch/app-match.h
@@ -55,6 +55,7 @@ private:
     QStringList m_returnResult;
 
     QDBusInterface *m_interFace=nullptr;
+    QFileSystemWatcher *m_watchAppDir=nullptr;
     QMap<QString,QList<QString>> m_softWareCenterMap;
     QMap<QString,QList<QString>> m_installAppMap;
     QMap<QString,QList<QString>> m_filterInstallAppMap;