diff --git a/code/application/source/sf_app/code/include/sf_storeMng.h b/code/application/source/sf_app/code/include/sf_storeMng.h
index ea6d3df48..165789f57 100644
--- a/code/application/source/sf_app/code/include/sf_storeMng.h
+++ b/code/application/source/sf_app/code/include/sf_storeMng.h
@@ -71,7 +71,7 @@ SINT32 sf_sd_status_set(SF_SD_STATUS_E enStatus);
 
 UINT32 sf_delete_send_flie_list(void);
 
-int sf_sd_loop(void);
+int sf_app_sd_loop(void);
 
 #ifdef __cplusplus
 #if __cplusplus
diff --git a/code/application/source/sf_app/code/source/4gMng/sf_sms.c b/code/application/source/sf_app/code/source/4gMng/sf_sms.c
index 7f8d09e20..d79598305 100755
--- a/code/application/source/sf_app/code/source/4gMng/sf_sms.c
+++ b/code/application/source/sf_app/code/source/4gMng/sf_sms.c
@@ -2419,7 +2419,7 @@ SINT32 sf_power_off_check_sd(void)
             if((storeattrs.SDStatus == 0) &  (storeattrs.SDFree < SDLOOP_REMAIN_SPACE))
             {
                 // sf_sd_loopremove(SF_DCIM_DIR);
-                sf_sd_loop();
+                sf_app_sd_loop();
             }
 
 		}
diff --git a/code/application/source/sf_app/code/source/app/sf_dbg.c b/code/application/source/sf_app/code/source/app/sf_dbg.c
index 90f84318c..3454f8b5e 100644
--- a/code/application/source/sf_app/code/source/app/sf_dbg.c
+++ b/code/application/source/sf_app/code/source/app/sf_dbg.c
@@ -1072,7 +1072,7 @@ SINT32 app_debug_process(SINT32 argc, SF_CHAR **argv[])
 		break;
 		case 5:
 			// sf_sd_loopremove("/mnt/mmc/DCIM");
-            sf_sd_loop();
+            sf_app_sd_loop();
 			MLOGI("/*          Added by MaxLi 2022/12/14--15:20:19*/\n");
 			break;
 		case 6:
diff --git a/code/application/source/sf_app/code/source/storeMng/sf_storeMng.c b/code/application/source/sf_app/code/source/storeMng/sf_storeMng.c
index 4015b8c24..9207f01f8 100644
--- a/code/application/source/sf_app/code/source/storeMng/sf_storeMng.c
+++ b/code/application/source/sf_app/code/source/storeMng/sf_storeMng.c
@@ -726,7 +726,7 @@ int sf_dcf_resort_min(void)
     return 0;
 }
 
-int sf_sd_loop(void)
+int sf_app_sd_loop(void)
 {
     char cPathTmp[512] = {0};
     char cFileTmp[512] = {0};