diff --git a/hal/src/SdCardHal.cpp b/hal/src/SdCardHal.cpp
index c2ef9ca..0ee6b58 100644
--- a/hal/src/SdCardHal.cpp
+++ b/hal/src/SdCardHal.cpp
@@ -67,14 +67,16 @@ StatusCode SdCardHal::GetCapacity(unsigned long long &totalSizeMB, unsigned long
 }
 StatusCode SdCardHal::FormatSDCard(void)
 {
+    UnInit();
     char command[128] = {0};
-    sprintf(command, "mkfs.ext4 -F %s", SD_CARD_DEVICE);
+    sprintf(command, "mkfs.vfat -F 32 %s", SD_CARD_DEVICE);
     int ret = fx_system(command);
     if (ret != 0) {
         LogError("Format sd card failed [%s].\n", SD_CARD_DEVICE);
         return CreateStatusCode(STATUS_CODE_NOT_OK);
     }
     LogInfo("Format sd card success.\n");
+    Init();
     return CreateStatusCode(STATUS_CODE_OK);
 }
 void SdCardHal::Init(void)
@@ -91,6 +93,7 @@ void SdCardHal::UnInit(void)
     if (mDevDetectingThread.joinable()) {
         mDevDetectingThread.join();
     }
+    UnmountSdCard();
 }
 void SdCardHal::DevDetectingThread(void)
 {
@@ -202,4 +205,22 @@ const char *SdCardHal::PrintfStatusString(const SdCardHalStatus &status)
     default:
         return "UNDEFINE.";
     }
+}
+void SdCardHal::UnmountSdCard(void)
+{
+    char command[128] = {0};
+    /** TODO:
+     * @brief Here, the SD card is forcibly loaded, and the DevDetectingThread function of this article causes the SD
+     * card node to be occupied and cannot be loaded. To find problems and optimize them, it is especially important to
+     * check whether there are any omissions.
+     */
+    sprintf(command, "umount -fl %s", SD_CARD_MOUNT_PATH);
+    int ret = fx_system(command);
+    if (ret != 0) {
+        LogError("Format sd card failed [%s].\n", SD_CARD_DEVICE);
+        return;
+    }
+}
+void SdCardHal::MountSdCard(void)
+{
 }
\ No newline at end of file
diff --git a/hal/src/SdCardHal.h b/hal/src/SdCardHal.h
index ed81230..3adbaad 100644
--- a/hal/src/SdCardHal.h
+++ b/hal/src/SdCardHal.h
@@ -33,6 +33,8 @@ public:
 private:
     void ReportDetecedChangedResult(const SdCardHalStatus &status);
     const char *PrintfStatusString(const SdCardHalStatus &status);
+    void UnmountSdCard(void);
+    void MountSdCard(void);
 
 private:
     SdCardHalStatus mStatus;