diff --git a/debian/changelog b/debian/changelog
index 09bfb25..e683f6a 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,13 @@
+ukui-interface (1.0.1-8) v101; urgency=medium
+
+  * BUG号：无
+  * 需求号：无
+  * 其他改动说明：1、优化当前日志文件超过限制大小时清空逻辑；
+                  2、修复fork子进程后，子进程日志无法输出问题；
+                  3、修改日志文件目录为~/.log/
+
+ -- Yang Min <yangmin@kylinos.cn>  Mon, 24 May 2021 20:59:37 +0800
+
 ukui-interface (1.0.1-7) v101; urgency=medium
 
   * BUG号：无
diff --git a/src/log4qt/log4qt/writerappender.cpp b/src/log4qt/log4qt/writerappender.cpp
index b434dc4..a2e2f94 100644
--- a/src/log4qt/log4qt/writerappender.cpp
+++ b/src/log4qt/log4qt/writerappender.cpp
@@ -35,11 +35,12 @@
 #include <QtCore/QTextCodec>
 #include <QtCore/QThread>
 #include <QtCore/QCoreApplication>
+#include <unistd.h>
 #include "log4qt/layout.h"
 #include "log4qt/loggingevent.h"
 #include "log4qt/helpers/asyncdispatcher.h"
 
-
+extern pid_t g_MainProcPid;
 namespace Log4Qt
 {
 	
@@ -218,7 +219,7 @@ namespace Log4Qt
 	            return;
 	    }
 		#else
-		if (qApp) {
+		if (qApp && g_MainProcPid == getpid()) {
 			if (mThread && !mThread->isRunning()) 
 				mThread->start();
 			qApp->postEvent(mAsyncDispatcher, new LoggingEvent(rEvent));
diff --git a/src/log4qt/ukui-logconfigurator.cpp b/src/log4qt/ukui-logconfigurator.cpp
index 624ab14..a7a0f5b 100644
--- a/src/log4qt/ukui-logconfigurator.cpp
+++ b/src/log4qt/ukui-logconfigurator.cpp
@@ -27,10 +27,12 @@
 
 #include <QDebug>
 #include <QStandardPaths>
+#include <unistd.h>
 
 
 LOG4QT_GLOBAL_STATIC(QMutex, single_config)
 UkuiLog4qtConfig *UkuiLog4qtConfig::mInstance = nullptr;
+pid_t g_MainProcPid = -1;
 
 UkuiLog4qtConfig::UkuiLog4qtConfig(QObject *parent) : 
     QObject(parent),
@@ -43,6 +45,7 @@ UkuiLog4qtConfig::UkuiLog4qtConfig(QObject *parent) :
     m_uMaxFileCount = 0;
     m_uMaxFileSize = 0;
     m_timeCheckFile = 60;
+    g_MainProcPid = getpid();
 }
 
 UkuiLog4qtConfig::~UkuiLog4qtConfig()
diff --git a/src/log4qt/ukui-logmacros.h b/src/log4qt/ukui-logmacros.h
index 65a4a76..b637ac9 100644
--- a/src/log4qt/ukui-logmacros.h
+++ b/src/log4qt/ukui-logmacros.h
@@ -28,7 +28,7 @@
 #endif
 
 // 日志文件相对home目录路径
-#define UKUILOG4QT_ROOTPATH  "/.config/ukui/"
+#define UKUILOG4QT_ROOTPATH  "/.log/"
 
 // gsettings相关相关属性
 #define UKUILOG4QT_SETTINGS "org.ukui.ukui-log4qt"
diff --git a/src/log4qt/ukui-logrolling.cpp b/src/log4qt/ukui-logrolling.cpp
index b31c6b3..35ba744 100644
--- a/src/log4qt/ukui-logrolling.cpp
+++ b/src/log4qt/ukui-logrolling.cpp
@@ -23,6 +23,7 @@
 #include <QFile>
 #include <QFileInfo>
 #include <QStringList>
+#include <QProcess>
 
 UkuiLog4qtRolling::UkuiLog4qtRolling(QString strBaseFilePath, unsigned uMaxFileCount, quint64 uMaxFileSize, 
         quint64 delayCheckFileTime, QObject *parent) :
@@ -170,6 +171,11 @@ void UkuiLog4qtRolling::checkLogFilesSize()
             QFile file(filePath);
             file.remove();  // 删除文件
             willRmFileSize -= fileInfoList[i].size();
+        } else {    // 清空文件内容
+            //KyDebug()<<"清空文件内容："<<filePath;
+            QProcess process;
+            process.start("sh", QStringList()<<"-c"<<QString("> %1").arg(filePath));
+            process.waitForFinished(100);
         }
     }
 }
\ No newline at end of file