diff --git a/libsearch/global-settings.cpp b/libsearch/global-settings.cpp
index 838ac79..32df70c 100644
--- a/libsearch/global-settings.cpp
+++ b/libsearch/global-settings.cpp
@@ -37,6 +37,14 @@ GlobalSettings::GlobalSettings(QObject *parent) : QObject(parent) {
 //    m_settings->setAtomicSyncRequired(false);
     m_block_dirs_settings = new QSettings(BLOCK_DIRS, QSettings::IniFormat, this);
     m_block_dirs_settings->setIniCodec(QTextCodec::codecForName("UTF-8"));
+    m_block_dirs_settings->setValue("These_are_block_dirs_conf_for_ukui_search","0");
+    m_block_dirs_settings->sync();
+    m_confWatcher = new QFileSystemWatcher(this);
+    m_confWatcher->addPath(BLOCK_DIRS);
+    connect(m_confWatcher, &QFileSystemWatcher::fileChanged, this, [ & ]() {
+        m_block_dirs_settings->sync();
+        m_confWatcher->addPath(BLOCK_DIRS);
+    });
 
     m_search_record_settings = new QSettings(SEARCH_HISTORY, QSettings::IniFormat, this);
     m_search_record_settings->setIniCodec(QTextCodec::codecForName("UTF-8"));
diff --git a/libsearch/global-settings.h b/libsearch/global-settings.h
index 3de9ded..4a61cc2 100644
--- a/libsearch/global-settings.h
+++ b/libsearch/global-settings.h
@@ -26,6 +26,7 @@
 #include <QMutex>
 #include <QVector>
 #include <QDir>
+#include <QFileSystemWatcher>
 //#include <QGSettings>
 //If use pkg_config, it wont build succes,why?????????
 //My demo can build access yet.
@@ -102,6 +103,7 @@ private:
     QSettings *m_search_record_settings;
     QMap<QString, QVariant> m_cache;
     QStringList m_history;
+    QFileSystemWatcher *m_confWatcher;
 
     QMutex m_mutex;
 //    size_t test = 0;