diff --git a/Platform/user/ulog/log-sched/log_pty.c b/Platform/user/ulog/log-sched/log_pty.c
index 98df9e640..ccecc193f 100755
--- a/Platform/user/ulog/log-sched/log_pty.c
+++ b/Platform/user/ulog/log-sched/log_pty.c
@@ -20,20 +20,62 @@
 #define LOG_CONF_KEY_PTY_LEVEL_STR	"pty.level"
 #define LOG_CONF_KEY_PTY_MODULE_STR	"pty.module"
 
+pthread_mutex_t g_mutex_pty;
 
-
-int g_epoll_fd = -1;
+volatile int g_epoll_fd = -1;
 int g_watch_fd = -1;
 int g_inotify_fd = -1;
 pthread_t g_monitor_thread;
 
-int access(const char *pathname, int mode);
 static int write_pty_content(FILE *fp, const u8 level, const char *filter_mod, void *arg);
 
+static ret_code write_pty_conf()
+{
+    char value_str[128]="";
+	uint level = LOG_INFO;
+	char *module = NULL;
+	ret_code ret = RET_OK;
+
+	memset(value_str, 0, sizeof(value_str));
+	sprintf(value_str, "%s%s", LOG_CONF_PATH, LOG_CONF_PTY_FILE_NAME);
+	if (access(value_str, 0) == 0) 
+	{
+		/* 获取配置 */
+		memset(value_str, 0, sizeof(value_str));
+		if (get_log_file_conf(LOG_CONF_KEY_PTY_LEVEL_STR, value_str, sizeof(value_str)) == 0)
+		{
+			level = atoi(value_str);	
+		}
+
+		memset(value_str, 0, sizeof(value_str));
+		if (get_log_file_conf(LOG_CONF_KEY_PTY_MODULE_STR, value_str, sizeof(value_str)) == 0)
+		{
+			module = value_str;
+		}
+
+        pthread_mutex_lock(&g_mutex_pty);
+        int ret_conf = log_conf((u8)level, LOG_CONF_PATH, LOG_CONF_PTY_FILE_NAME, module, 
+		        write_pty_content, NULL);
+        pthread_mutex_unlock(&g_mutex_pty);
+		if (ret_conf != 0) 
+		{
+		 	ULOG_ERR(g_log, "Log's pty configure which is written is failure");
+			ret = RET_ERR;
+		}
+		else
+		{
+			ULOG_DEBUG(g_log, "Pty config level(%u) and module(%s) successed.", level, module!=NULL?module:"NULL");
+		}
+	}	
+
+    return ret;
+}
+
 static void *pty_monitor_thread(void *arg)
 {
     struct epoll_event events[MAX_EVENT_NUMBER];
     int ret;
+    ret_code ret_c;
     char buf[MAX_LINE_SZ];
     ssize_t len;
     char *ptr;
@@ -82,8 +124,11 @@ static void *pty_monitor_thread(void *arg)
                 sleep(1);
 
                 ULOG_DEBUG(g_log, "Current ev mask:%u, wo will write configure and restart rsyslog", inotify_ev->mask);
-                log_conf(LOG_INFO, LOG_CONF_PATH, LOG_CONF_PTY_FILE_NAME, NULL, 
-                    write_pty_content, NULL);
+                ret_c = write_pty_conf();
+                if (ret_c != RET_OK) {
+                    ULOG_ERR(g_log, "Pty monitor write pty configure is failure(code:%d)", ret_c);
+                    continue;
+                }
 
                 if (log_sev_restart() != 0) {                    
                     ULOG_ERR(g_log, "Pty monitor restart rsyslog 2 is failure");
@@ -233,10 +278,12 @@ static int config_log_pty(const log_pty_t *conf)
             break;
 			
         case LOG_ON:
-            if (log_conf(conf->level, LOG_CONF_PATH, LOG_CONF_PTY_FILE_NAME, conf->module, 
-                    write_pty_content, NULL) != 0) {
+            pthread_mutex_lock(&g_mutex_pty);
+            ret = log_conf(conf->level, LOG_CONF_PATH, LOG_CONF_PTY_FILE_NAME, conf->module, 
+                    write_pty_content, NULL);
+            pthread_mutex_unlock(&g_mutex_pty);
+            if (ret != 0) {
                 ULOG_ERR(g_log, "Log's pty configure which is written is failure");
-                ret = -1;
             } else {
                 ret = 0;
             }            
@@ -283,46 +330,30 @@ void rpc_conf_log_pty(rpc_conn *conn, pointer input, int input_len,	pointer data
 
 ret_code pty_initial()
 {
-	char value_str[128]="";
-	uint level = 6;
-	char *module = NULL;
-	ret_code ret = RET_OK;
+    int thread_ret = pthread_mutex_init(&g_mutex_pty, NULL);
+    if (thread_ret != 0) {        
+        ULOG_DEBUG(g_log, "Initiating pthread lock is failure(cdoe:%d)", thread_ret);
+    }
 
-	memset(value_str, 0, sizeof(value_str));
-	sprintf(value_str, "%s%s", LOG_CONF_PATH, LOG_CONF_PTY_FILE_NAME);
-	if (access(value_str, 0) == 0) 
-	{
-		/* 获取配置 */
-		memset(value_str, 0, sizeof(value_str));
-		if (get_log_file_conf(LOG_CONF_KEY_PTY_LEVEL_STR, value_str, sizeof(value_str)) == 0)
-		{
-			level = atoi(value_str);	
-		}
-
-		memset(value_str, 0, sizeof(value_str));
-		if (get_log_file_conf(LOG_CONF_KEY_PTY_MODULE_STR, value_str, sizeof(value_str)) == 0)
-		{
-			module = value_str;
-		}
-
-		if (log_conf((u8)level, LOG_CONF_PATH, LOG_CONF_PTY_FILE_NAME, module, 
-		        write_pty_content, NULL) != 0) 
-		{
-		 	ULOG_ERR(g_log, "Log's pty configure which is written is failure");
-			ret = RET_ERR;
-		}
-		else
-		{
-			ULOG_DEBUG(g_log, "Pty config level(%u) and module(%s) successed.", level, module!=NULL?module:"NULL");
-		}
-	}	
+	ret_code ret = write_pty_conf();	
+    if (ret != RET_OK) {
+        ULOG_DEBUG(g_log, "Initiating pty is failure(cdoe:%d)", ret);
+    } else {        
+        ULOG_INFO(g_log, "Initiating pty is success");
+    }
 	
 	return ret;
 }
 
 ret_code pty_exit()
 {
+    ret_code ret = RET_OK;
+    int thread_ret = pthread_mutex_destroy(&g_mutex_pty);
+    if (0 != thread_ret) { 
+        ret = RET_ERR;
+        ULOG_DEBUG(g_log, "Destroying pthread lock is failure(cdoe:%d)", thread_ret);
+    }
 	stop_dev_pty_monitor();
-	return RET_OK;
+	return ret;
 }