diff --git a/index/document.cpp b/index/document.cpp
index f6ea7aa..70d991b 100644
--- a/index/document.cpp
+++ b/index/document.cpp
@@ -11,9 +11,9 @@ Document::~Document()
 //    if(m_document)
 //        delete m_document;
 //    if(m_index_text)
-//	delete m_index_text;
+//        delete m_index_text;
 //    if(m_unique_term)
-//	delete m_unique_term;
+//        delete m_unique_term;
 }
 
 void Document::setData(QString data)
diff --git a/index/file-searcher.cpp b/index/file-searcher.cpp
new file mode 100644
index 0000000..0baaa47
--- /dev/null
+++ b/index/file-searcher.cpp
@@ -0,0 +1,81 @@
+#include "file-searcher.h"
+
+FileSearcher::FileSearcher(QObject *parent) : QObject(parent)
+{
+
+}
+
+void FileSearcher::onKeywordSearch(QString keyword)
+{
+    QStringList searchResult;
+    try
+    {
+        qDebug()<<"--search start--";
+
+        Xapian::Database db(INDEX_PATH);
+        Xapian::Enquire enquire(db);
+        Xapian::QueryParser qp;
+        qp.set_default_op(Xapian::Query::OP_PHRASE);
+        qp.set_database(db);
+        auto userInput = keyword;
+
+        std::string queryStr = indexText.replace(""," ").toStdString();
+//        std::string s =db.get_spelling_suggestion(queryStr,10);
+//        qDebug()<<"spelling_suggestion!"<<QString::fromStdString(s);
+
+        qDebug()<<"queryStr!"<<QString::fromStdString(queryStr);
+        //Creat a query
+        Xapian::Query queryPhrase = qp.parse_query(queryStr,Xapian::QueryParser::FLAG_PHRASE);
+        vector<Xapian::Query> v;
+        for(int i=0;i<userInput.size();i++)
+        {
+            v.push_back(Xapian::Query(QString(userInput.at(i)).toStdString()));
+            qDebug()<<userInput.at(i);
+            qDebug()<<QString::fromStdString(Xapian::Query(QString(userInput.at(i)).toStdString()).get_description());
+        }
+        Xapian::Query queryNear =Xapian::Query(Xapian::Query::OP_NEAR, v.begin(), v.end());
+        Xapian::Query query = Xapian::Query(Xapian::Query::OP_AND,queryNear,queryPhrase);
+
+        qDebug()<<QString::fromStdString(query.get_description());
+        enquire.set_query(query);
+
+        Xapian::MSet result = enquire.get_mset(0, 9999);
+        qDebug()<< "find results count=" <<static_cast<int>(result.get_matches_estimated());
+
+//        QStringList *pathTobeDelete = new QStringList;
+
+        //get search result
+        for (auto it = result.begin(); it != result.end(); ++it) {
+            Xapian::Document doc = it.get_document();
+            std::string data = doc.get_data();
+            Xapian::weight docScoreWeight = it.get_weight();
+            Xapian::percent docScorePercent = it.get_percent();
+            QFileInfo *info = new QFileInfo(QString::fromStdString(data));
+
+            if(!info->exists())
+            {
+//                pathTobeDelete->append(QString::fromStdString(data));
+                qDebug()<<QString::fromStdString(data)<<"is not exist!!";
+            }
+            else
+            {
+                searchResult.append(QString::fromStdString(data));
+            }
+
+            qDebug()<< "doc="<< QString::fromStdString(data) << ",weight=" <<docScoreWeight << ",percent=" << docScorePercent;
+        }
+//        //Delete those path doc which is not already exist.
+//        if(!pathTobeDelete->isEmpty())
+//            deleteAllIndex(pathTobeDelete);
+
+        qDebug()<< "--search finish--";
+    }
+    catch(const Xapian::Error &e)
+    {
+        qDebug() <<QString::fromStdString(e.get_description());
+        return;
+    }
+    Q_EMIT this->result(searchResult);
+    return;
+
+}
diff --git a/index/file-searcher.h b/index/file-searcher.h
new file mode 100644
index 0000000..5a2c435
--- /dev/null
+++ b/index/file-searcher.h
@@ -0,0 +1,24 @@
+#ifndef FILESEARCHER_H
+#define FILESEARCHER_H
+
+#include <QObject>
+#include <xapian.h>
+#define INDEX_PATH (QStandardPaths::writableLocation(QStandardPaths::HomeLocation)+"/.config/org.ukui/index_data").toStdString()
+
+
+class FileSearcher : public QObject
+{
+    Q_OBJECT
+public:
+    explicit FileSearcher(QObject *parent = nullptr);
+
+public Q_SLOTS:
+    void onKeywordSearch(QString keyword);
+
+Q_SIGNALS:
+    void result(QStringList resultList);
+
+
+};
+
+#endif // FILESEARCHER_H
diff --git a/index/index-generator.cpp b/index/index-generator.cpp
index d886cf8..e3c2542 100644
--- a/index/index-generator.cpp
+++ b/index/index-generator.cpp
@@ -77,24 +77,25 @@ IndexGenerator::~IndexGenerator()
 
 void IndexGenerator::insertIntoDatabase(Document doc)
 {
-    qDebug()<< "--index start--";
+//    qDebug()<< "--index start--";
     Xapian::Document document = doc.getXapianDocument();
     m_indexer->set_document(document);
-    qDebug()<<doc.getIndexText();
+//    qDebug()<<doc.getIndexText();
 
     for(auto i : doc.getIndexText()){
         m_indexer->index_text(i.toStdString());
     }
 
     Xapian::docid innerId= m_datebase->replace_document(doc.getUniqueTerm(),document);
-    qDebug()<<"replace doc docid="<<static_cast<int>(innerId);
-    qDebug()<< "--index finish--";
+//    qDebug()<<"replace doc docid="<<static_cast<int>(innerId);
+//    qDebug()<< "--index finish--";
     return;
 }
 
 void IndexGenerator::HandlePathList(QList<QVector<QString>> *messageList)
 {
     qDebug()<<"Begin HandlePathList!";
+    qDebug()<<messageList->size();
 //    qDebug()<<QString::number(quintptr(QThread::currentThreadId()));
     QFuture<Document> future = QtConcurrent::mapped(*messageList,&IndexGenerator::GenerateDocument);
 
@@ -227,7 +228,7 @@ bool IndexGenerator::deleteAllIndex(QStringList *pathlist)
     for(int i = 0;i<list->size();i++)
     {
         QString doc = list->at(i);
-        std::string uniqueterm = m_cryp->hash(doc.toUtf8(),QCryptographicHash::Md5).toStdString();;
+        std::string uniqueterm = FileUtils::makeDocUterm(doc);
         try
         {
             qDebug()<<"--delete start--";
diff --git a/index/index.pri b/index/index.pri
index 11097a9..bab7f9c 100644
--- a/index/index.pri
+++ b/index/index.pri
@@ -9,7 +9,8 @@ HEADERS += \
     $$PWD/messagelist-manager.h \
     $$PWD/traverse_bfs.h \
     $$PWD/messagelist-manager.h \
-    $$PWD/text-content-indexer.h
+    $$PWD/text-content-indexer.h \
+    $$PWD/file-searcher.h
 
 SOURCES += \
 #    $$PWD/chinesecharacterstopinyin.cpp \
@@ -20,5 +21,6 @@ SOURCES += \
     $$PWD/messagelist-manager.cpp \
     $$PWD/test-Inotify-Manager.cpp \
     $$PWD/traverse_bfs.cpp \
-    $$PWD/text-content-indexer.cpp
+    $$PWD/text-content-indexer.cpp \
+    $$PWD/file-searcher.cpp