diff --git a/applications/app/TW206_Module_nfc/tw_nfc_lib/frameworks/tw_nfc.c b/applications/app/TW206_Module_nfc/tw_nfc_lib/frameworks/tw_nfc.c
index 46756f3351ac5407b38b4e7c946bc8d947519b4a..b7d40a0a9750e83ce89290715cd3e8b2f560bee5 100644
--- a/applications/app/TW206_Module_nfc/tw_nfc_lib/frameworks/tw_nfc.c
+++ b/applications/app/TW206_Module_nfc/tw_nfc_lib/frameworks/tw_nfc.c
@@ -59,7 +59,7 @@ BOOL TWNfcTagWrite(NdefFrame *param, unsigned char tagCnt)
     unsigned int nfcStartAddr = 0;
     MemFrame tlvHeadBuf = {0};
     tlvHeadBuf.data[0] = NFC_TLV_HEAD;
-    if (tlvLen > 255)
+    if (tlvLen >= 255)
     {
         tlvHeadBuf.data[1] = 0xff;
         tlvHeadBuf.data[2] = (unsigned char)(tlvLen >> 8) & 0xff;