diff --git a/services/ptable_parse/ufs_ptable.cpp b/services/ptable_parse/ufs_ptable.cpp
index cfda373b524932e5dd64c3fb0a870a65b8c5b256..b4cee23a86f38c2680163081545400987ea4150f 100644
--- a/services/ptable_parse/ufs_ptable.cpp
+++ b/services/ptable_parse/ufs_ptable.cpp
@@ -45,6 +45,19 @@ uint32_t UfsPtable::GetPtableExtraOffset(void)
 }
 
 // avoid u disk being recognized as a valid gpt lun device
+bool UfsPtable::IsUsbPath(const char* filePath)
+{
+    const char* targetUsbString = "usb";
+    const char* targetXhciString = "xhci";
+    char linkBuf[READ_LINK_BUFFER_LENTH] = {0};
+    ssize_t retSize = readlink(filePath, linkBuf, READ_LINK_BUFFER_LENTH - 1);
+    LOG(INFO) << "readlibk " << filePath << " retSzie " << retSize << ", linkBuf is: " << linkBuf;
+    if (retSize > 0 && (strstr(linkBuf, targetUsbString) != nullptr || strstr(linkBuf, targetXhciString) != nullptr)) {
+        return true;
+    }
+    return false;
+}
+
 bool UfsPtable::CheckDeviceLunRemoveable(const uint32_t lunIndex)
 {
     constexpr uint32_t minRemoveableStartIdx = 3;
@@ -88,7 +101,7 @@ void UfsPtable::SetDeviceLunNum()
             break;
         }
 #ifndef UPDATER_UT
-        if (CheckDeviceLunRemoveable(lunIndex)) {
+        if (CheckDeviceLunRemoveable(lunIndex) || IsUsbPath(ufsNode.c_str())) {
             LOG(ERROR) << "device " << ufsNode << " is removable, may be a u disk";
             break;
         }
diff --git a/services/ptable_parse/ufs_ptable.h b/services/ptable_parse/ufs_ptable.h
index b0180f9129f483c7cc184e605913c8dfc2bf0417..96ae8fe7fd5021f3b0a383469a6c8ca914de5202 100644
--- a/services/ptable_parse/ufs_ptable.h
+++ b/services/ptable_parse/ufs_ptable.h
@@ -41,6 +41,7 @@ public:
     static constexpr uint32_t MAX_LUN_NUMBERS = 26;
     static constexpr uint32_t MIN_UFS_WRITE_SIZE = 4096;
     static constexpr uint32_t GPT_PTABLE_BACKUP_SIZE = 33; // back ptable at the end of lun
+    static constexpr uint32_t READ_LINK_BUFFER_LENTH = 1024; // readlink buffer size
 
     struct UfsPartitionDataInfo {
         bool isGptVaild;
@@ -77,6 +78,7 @@ public:
     uint8_t *GetPtableImageUfsLunPmbrStart(uint8_t *imageBuf, const uint32_t lunIndex);
     uint8_t *GetPtableImageUfsLunGptHeaderStart(uint8_t *imageBuf, const uint32_t lunIndex);
     uint8_t *GetPtableImageUfsLunEntryStart(uint8_t *imageBuf, const uint32_t lunIndex);
+    bool IsUsbPath(const char* filePath);
 };
 } // namespace Updater
 #endif // UPDATER_UFS_PTABLE_H
\ No newline at end of file