diff --git a/libsearch/file-utils.h b/libsearch/file-utils.h
index 2c6e692..3d99dbe 100644
--- a/libsearch/file-utils.h
+++ b/libsearch/file-utils.h
@@ -33,7 +33,7 @@ public:
     static void getDocxTextContent(QString &path, QString &textcontent);
     static void getTxtContent(QString &path, QString &textcontent);
     static size_t _max_index_count;
-    static size_t _current_index_count;
+    static size_t _current_index_count; //this one has been Abandoned,do not use it.
     static unsigned short _index_status;
 
 private:
diff --git a/libsearch/index/file-searcher.cpp b/libsearch/index/file-searcher.cpp
index d797d3d..e469915 100644
--- a/libsearch/index/file-searcher.cpp
+++ b/libsearch/index/file-searcher.cpp
@@ -20,6 +20,12 @@ FileSearcher::~FileSearcher()
 {
 }
 
+int FileSearcher::getCurrentIndexCount()
+{
+    Xapian::Database db(INDEX_PATH);
+    return db.get_doccount();
+}
+
 void FileSearcher::onKeywordSearch(QString keyword,QQueue<QString> *searchResultFile,QQueue<QString> *searchResultDir,QQueue<QPair<QString,QStringList>> *searchResultContent)
 {
     m_mutex1.lock();
diff --git a/libsearch/index/file-searcher.h b/libsearch/index/file-searcher.h
index d6a1a8f..22008e8 100644
--- a/libsearch/index/file-searcher.h
+++ b/libsearch/index/file-searcher.h
@@ -20,6 +20,8 @@ public:
     explicit FileSearcher(QObject *parent = nullptr);
     ~FileSearcher();
 
+    int getCurrentIndexCount();
+
     static size_t uniqueSymbol1;
     static size_t uniqueSymbol2;
     static size_t uniqueSymbol3;
diff --git a/libsearch/index/index-generator.cpp b/libsearch/index/index-generator.cpp
index 3dc3c39..7d1fee8 100644
--- a/libsearch/index/index-generator.cpp
+++ b/libsearch/index/index-generator.cpp
@@ -56,7 +56,6 @@ bool IndexGenerator::creatAllIndex(QQueue<QVector<QString> > *messageList)
                 count = 0;
                 m_datebase_path->commit();
             }
-            FileUtils::_current_index_count += 1;
         }
         m_datebase_path->commit();
     }
@@ -65,7 +64,7 @@ bool IndexGenerator::creatAllIndex(QQueue<QVector<QString> > *messageList)
         qWarning()<<"creatAllIndex fail!"<<QString::fromStdString(e.get_description());
         //need a record
         GlobalSettings::getInstance()->setValue(INDEX_DATABASE_STATE,"1");
-        Q_ASSERT(false);
+        assert(false);
     }
     m_doc_list_path->clear();
     Q_EMIT this->transactionFinished();
@@ -96,7 +95,7 @@ bool IndexGenerator::creatAllIndex(QQueue<QString> *messageList)
     {
         qWarning()<<"creat content Index fail!"<<QString::fromStdString(e.get_description());
         GlobalSettings::getInstance()->setValue(CONTENT_INDEX_DATABASE_STATE,"1");
-        Q_ASSERT(false);
+        assert(false);
     }
     m_doc_list_content->clear();
     Q_EMIT this->transactionFinished();
@@ -361,9 +360,6 @@ bool IndexGenerator::deleteAllIndex(QStringList *pathlist)
             qDebug()<<"delete path"<<doc;
             qDebug()<<"delete md5"<<QString::fromStdString(uniqueterm);
             m_datebase_path->commit();
-
-            FileUtils::_current_index_count = m_datebase_path->get_doccount();
-
             qDebug()<< "--delete finish--";
         }
         catch(const Xapian::Error &e)