diff --git a/globalsettings.cpp b/globalsettings.cpp
new file mode 100644
index 0000000..1b0f10a
--- /dev/null
+++ b/globalsettings.cpp
@@ -0,0 +1,6 @@
+#include "globalsettings.h"
+
+GlobalSettings::GlobalSettings(QObject *parent) : QObject(parent)
+{
+
+}
diff --git a/globalsettings.h b/globalsettings.h
new file mode 100644
index 0000000..c10c0c9
--- /dev/null
+++ b/globalsettings.h
@@ -0,0 +1,16 @@
+#ifndef GLOBALSETTINGS_H
+#define GLOBALSETTINGS_H
+
+#include <QObject>
+
+class GlobalSettings : public QObject
+{
+    Q_OBJECT
+public:
+    explicit GlobalSettings(QObject *parent = nullptr);
+
+Q_SIGNALS:
+
+};
+
+#endif // GLOBALSETTINGS_H
diff --git a/index/blockdirs.cpp b/index/blockdirs.cpp
new file mode 100644
index 0000000..49fc5da
--- /dev/null
+++ b/index/blockdirs.cpp
@@ -0,0 +1,6 @@
+#include "blockdirs.h"
+
+BlockDirs::BlockDirs(QObject *parent) : QObject(parent)
+{
+
+}
diff --git a/index/blockdirs.h b/index/blockdirs.h
new file mode 100644
index 0000000..b0a1d20
--- /dev/null
+++ b/index/blockdirs.h
@@ -0,0 +1,16 @@
+#ifndef BLOCKDIRS_H
+#define BLOCKDIRS_H
+
+#include <QObject>
+
+class BlockDirs : public QObject
+{
+    Q_OBJECT
+public:
+    explicit BlockDirs(QObject *parent = nullptr);
+
+Q_SIGNALS:
+
+};
+
+#endif // BLOCKDIRS_H
diff --git a/index/filetypefilter.cpp b/index/filetypefilter.cpp
new file mode 100644
index 0000000..e5e104d
--- /dev/null
+++ b/index/filetypefilter.cpp
@@ -0,0 +1,33 @@
+#include <QDebug>
+#include "filetypefilter.h"
+
+FileTypeFilter::FileTypeFilter(const QString& path) : Traverse_BFS(path)
+{
+    this->result = new QVector<QString>();
+    this->Traverse();
+}
+
+FileTypeFilter::~FileTypeFilter()
+{
+    delete this->result;
+    this->result = nullptr;
+}
+
+void FileTypeFilter::DoSomething(const QFileInfo& fileInfo){
+//    QMimeDatabase qmd;
+//    QMimeType qmt;
+//    qmt = qmd.mimeTypeForFile(fileInfo.fileName());
+//    qDebug() << qmt.preferredSuffix();
+    for (auto i : this->targetFileTypeVec){
+        if (fileInfo.fileName().endsWith(i)){
+//            qDebug() << fileInfo.fileName();
+            this->result->append(fileInfo.absoluteFilePath());
+        }
+    }
+
+}
+
+QVector<QString>* FileTypeFilter::getTargetFileAbsolutePath(){
+    return this->result;
+}
+
diff --git a/index/filetypefilter.h b/index/filetypefilter.h
new file mode 100644
index 0000000..4d28227
--- /dev/null
+++ b/index/filetypefilter.h
@@ -0,0 +1,32 @@
+#ifndef FILETYPEFILTER_H
+#define FILETYPEFILTER_H
+
+#include <QObject>
+#include <QMimeDatabase>
+#include <QMimeType>
+#include <QVector>
+#include "traverse_bfs.h"
+
+class FileTypeFilter : public QObject, public Traverse_BFS
+{
+    Q_OBJECT
+public:
+    explicit FileTypeFilter(const QString&);
+    ~FileTypeFilter();
+    virtual void DoSomething(const QFileInfo&) final;
+    QVector<QString>* getTargetFileAbsolutePath();
+
+Q_SIGNALS:
+private:
+    const QVector<QString> targetFileTypeVec ={ QString(".doc"),
+                                                QString(".docx"),
+                                                QString(".ppt"),
+                                                QString(".pptx"),
+                                                QString(".xls"),
+                                                QString(".xlsx"),
+                                                QString(".txt")};
+    QVector<QString>* result;
+
+};
+
+#endif // FILETYPEFILTER_H
diff --git a/index/index.pri b/index/index.pri
index bab7f9c..96b2aba 100644
--- a/index/index.pri
+++ b/index/index.pri
@@ -2,7 +2,9 @@ INCLUDEPATH += $$PWD
 
 HEADERS += \
 #    $$PWD/chinesecharacterstopinyin.h \
+    $$PWD/blockdirs.h \
     $$PWD/document.h \
+    $$PWD/filetypefilter.h \
     $$PWD/index-generator.h \
 #    $$PWD/inotify-manager.h \
     $$PWD/inotify.h \
@@ -14,7 +16,9 @@ HEADERS += \
 
 SOURCES += \
 #    $$PWD/chinesecharacterstopinyin.cpp \
+    $$PWD/blockdirs.cpp \
     $$PWD/document.cpp \
+    $$PWD/filetypefilter.cpp \
     $$PWD/index-generator.cpp \
 #    $$PWD/inotify-manager.cpp \
     $$PWD/inotify.cpp \
diff --git a/index/inotify.cpp b/index/inotify.cpp
index 974adb8..f6e7b2d 100644
--- a/index/inotify.cpp
+++ b/index/inotify.cpp
@@ -85,7 +85,7 @@ bool InotifyManagerRefact::RemoveWatch(const QString &path){
                 qDebug() << i.value();
                 /*--------------------------------*/
                 //在此调用删除索引
-//                IndexGenerator::getInstance()->deleteAllIndex(new QStringList(path));
+                IndexGenerator::getInstance()->deleteAllIndex(new QStringList(path));
                 /*--------------------------------*/
                 currentPath.erase(i++);
             }
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 646e189..37f1211 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -36,6 +36,7 @@
 #include "index-generator.h"
 //#include "inotify-manager.h"
 #include "inotify.h"
+#include "filetypefilter.h"
 #include "file-searcher.h"
 
 extern void qt_blurImage(QImage &blurImage, qreal radius, bool quality, int transposed);
@@ -49,6 +50,18 @@ extern void qt_blurImage(QImage &blurImage, qreal radius, bool quality, int tran
 MainWindow::MainWindow(QWidget *parent) :
     QMainWindow(parent)
 {
+    FileTypeFilter* ftf = new FileTypeFilter("/home");
+    ftf->getTargetFileAbsolutePath();
+
+    /*-------------InotyifyRefact Test Start---------------*/
+//    QTime t1 = QTime::currentTime();
+//    InotifyManagerRefact* imr = new InotifyManagerRefact("/home");
+//    imr->start();
+//    QTime t2 = QTime::currentTime();
+//    qDebug() << t1;
+//    qDebug() << t2;
+    /*-------------InotyifyRefact Test End-----------------*/
+
     this->setWindowFlags(Qt::CustomizeWindowHint | Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint);
     this->setAttribute(Qt::WA_TranslucentBackground, true);
     this->setAutoFillBackground(false);
diff --git a/ukui-search.pro b/ukui-search.pro
index ea03398..190b9ed 100644
--- a/ukui-search.pro
+++ b/ukui-search.pro
@@ -32,10 +32,12 @@ else: unix:!android: target.path = /opt/$${TARGET}/bin
 
 HEADERS += \
     file-utils.h \
+    globalsettings.h \
     gobject-template.h \
 
 SOURCES += \
     file-utils.cpp \
+    globalsettings.cpp \
     gobject-template.cpp \
 
 PKGCONFIG += gio-2.0 glib-2.0 gio-unix-2.0 gsettings-qt libbamf3 x11 xrandr xtst