diff --git a/code/application/source/cardv/SrcCode/System/SysStrg_Exe.c b/code/application/source/cardv/SrcCode/System/SysStrg_Exe.c
index a45b526a9..c2db86c67 100644
--- a/code/application/source/cardv/SrcCode/System/SysStrg_Exe.c
+++ b/code/application/source/cardv/SrcCode/System/SysStrg_Exe.c
@@ -382,17 +382,33 @@ void sf_log_sava(void)
     UIMenuStoreInfo *puiPara = sf_ui_para_get();
     struct tm current_time2 = {0};
     char tmp[64] = {'\0'};
-    if((((puiPara->DebugMode) || (puiPara->AutoLogSwitch)) && (!sf_is_usb_flag())) && ((TRUE != sf_is_card_full())))
+    SF_ST_MMC_DEV *mmc_dev = SF_GetMMCDev();
+    if((((puiPara->DebugMode) || (puiPara->AutoLogSwitch)) && (!sf_is_usb_flag())) && ((mmc_dev != NULL)))
     {
         DBG_DUMP("LogFile_Close ...\n");
+        if(mmc_dev->dcf_handle < 0)
+        {
+            DBG_ERR("dcf_handle err\n");
+            return;
+        }
         current_time2 = hwclock_get_time(TIME_ID_CURRENT);
-        snprintf(tmp, sizeof(tmp), "A:\\LOG\\%lu%02lu%02lu%02lu%02lu%02lu_%d.log", current_time2.tm_year, current_time2.tm_mon, current_time2.tm_mday, current_time2.tm_hour, current_time2.tm_min, current_time2.tm_sec,sf_get_power_on_mode());
-        //
         LogFile_Suspend();
-        LogFile_DumpToFile(tmp);
+        if((mmc_dev->dev_type == MMC_DEV_SD) && (TRUE != sf_is_card_full()))
+        {
+            snprintf(tmp, sizeof(tmp), "A:\\LOG\\%lu%02lu%02lu%02lu%02lu%02lu_%d.log", current_time2.tm_year, current_time2.tm_mon, current_time2.tm_mday, current_time2.tm_hour, current_time2.tm_min, current_time2.tm_sec,sf_get_power_on_mode());
+            LogFile_DumpToFile(tmp);
+        }
+        else if((TRUE != sf_is_emmc_full()))
+        {
+            snprintf(tmp, sizeof(tmp), "B:\\LOG\\%lu%02lu%02lu%02lu%02lu%02lu_%d.log", current_time2.tm_year, current_time2.tm_mon, current_time2.tm_mday, current_time2.tm_hour, current_time2.tm_min, current_time2.tm_sec,sf_get_power_on_mode());
+            LogFile_DumpToFile(tmp);
+        }
+        //
         LogFile_Close();
+
         DBG_DUMP("LogFile:%s\n",tmp);
         system("rm -rf /mnt/sd/LOG/*dummy*");//Clear intermediate files.
+        system("rm -rf /mnt/sd2/LOG/*dummy*");//Clear intermediate files.
 		system("sync");
     }
     #endif
diff --git a/rtos/code/application/source/cardv/SrcCode/System/rtos-main.c b/rtos/code/application/source/cardv/SrcCode/System/rtos-main.c
index 4c36ade86..3f00b7ec8 100644
--- a/rtos/code/application/source/cardv/SrcCode/System/rtos-main.c
+++ b/rtos/code/application/source/cardv/SrcCode/System/rtos-main.c
@@ -87,6 +87,7 @@
 #include <sf_mcu.h>
 #include "sf_led.h"
 #include "sf_battery.h"
+#include "sf_sd_common.h"
 #endif
 
 //dis
@@ -168,14 +169,35 @@ void sf_log_sava(void)
     struct tm current_time2 = {0};
     char tmp[64] = {'\0'};
     ER ret = 0;
+    SF_RTOS_ST_MMC_DEV *mmc_dev = NULL;
     if((((puiPara->DebugMode) || (puiPara->AutoLogSwitch)) && (!sf_is_usb_flag())) && ((TRUE != sf_is_card_full()) || (TRUE != sf_is_emmc_full())))
     {
-        
+        #if USE_RTOS_MMC_CHECK	
+        mmc_dev = SF_RtosStrgCheckWorkableDev();
+        if(mmc_dev == NULL)
+        {
+            DBG_ERR("No MMC_Dev Can use!\n");
+            return;
+        }
+        if(mmc_dev->dcf_handle < 0)
+        {
+            DBG_ERR("dcf_handle err\n");
+            return;
+        }
+        #endif
         current_time2 = hwclock_get_time(TIME_ID_CURRENT);
-        snprintf(tmp, sizeof(tmp), "A:\\LOG\\%lu%02lu%02lu%02lu%02lu%02lu_%d.log", current_time2.tm_year, current_time2.tm_mon, current_time2.tm_mday, current_time2.tm_hour, current_time2.tm_min, current_time2.tm_sec,sf_get_power_on_mode());
-        //
         LogFile_Suspend();
-        ret = LogFile_DumpToFile(tmp);
+        if((mmc_dev->dev_type == MMC_DEV_SD) && (TRUE != sf_is_card_full()))
+        {
+            snprintf(tmp, sizeof(tmp), "A:\\LOG\\%lu%02lu%02lu%02lu%02lu%02lu_%d.log", current_time2.tm_year, current_time2.tm_mon, current_time2.tm_mday, current_time2.tm_hour, current_time2.tm_min, current_time2.tm_sec,sf_get_power_on_mode());
+            ret = LogFile_DumpToFile(tmp);
+        }
+        else if((TRUE != sf_is_emmc_full()))
+        {
+            snprintf(tmp, sizeof(tmp), "B:\\LOG\\%lu%02lu%02lu%02lu%02lu%02lu_%d.log", current_time2.tm_year, current_time2.tm_mon, current_time2.tm_mday, current_time2.tm_hour, current_time2.tm_min, current_time2.tm_sec,sf_get_power_on_mode());
+            ret = LogFile_DumpToFile(tmp);
+        }
+        //
         LogFile_Close();
         DBG_DUMP("LogFile_Close:%s ret:%d\n", tmp, ret);
     }