diff --git a/example/src/helper/Log.cpp b/example/src/helper/Log.cpp
index c465cd2b..497e302f 100644
--- a/example/src/helper/Log.cpp
+++ b/example/src/helper/Log.cpp
@@ -207,3 +207,8 @@ void Log::setup(const QString &app,int level)
     qInfo()<<"[LOG_PATH]"<<g_file_path;
     qInfo()<<"===================================================";
 }
+
+void Log::teardown()
+{
+    qInstallMessageHandler(0);
+}
diff --git a/example/src/helper/Log.h b/example/src/helper/Log.h
index 808ba8c8..3692260e 100644
--- a/example/src/helper/Log.h
+++ b/example/src/helper/Log.h
@@ -6,6 +6,7 @@ namespace Log
 {
     QString prettyProductInfoWrapper();
     void setup(const QString &app,int level = 4);
+    void teardown();
 }
 
 #endif // LOG_H
diff --git a/example/src/main.cpp b/example/src/main.cpp
index bbcb34cc..7e5fe739 100644
--- a/example/src/main.cpp
+++ b/example/src/main.cpp
@@ -82,5 +82,6 @@ int main(int argc, char *argv[])
     if (exec == 931) {
         QProcess::startDetached(qApp->applicationFilePath(), QStringList());
     }
+    Log::teardown();
     return exec;
 }