diff --git a/server/web3sign/controllers/activate721nft.js b/server/web3sign/controllers/activate721nft.js
index 6a527cd..171c998 100644
--- a/server/web3sign/controllers/activate721nft.js
+++ b/server/web3sign/controllers/activate721nft.js
@@ -14,6 +14,7 @@ async function activate721Nft(session) {
     const itemUniId = session.request('item_uniid');
     const itemId = session.request('item_id');
     const bc = serviceFactory.create('BlockChain');
+    const isMint = session.request('is_mint') == '1' ? true : false;
     {
       const ret = await bc.init(netId);
       if (!ret) {
@@ -51,6 +52,10 @@ async function activate721Nft(session) {
         session.rspErr(101, 'token_type param error');
         return;
       }
+      if (itemMeta.getNftType() == bcconst.BC_NFT_GOLD_BULLION && !isMint) {
+        session.rspErr(101, 'gold bullion only mint');
+        return;
+      }
     }
     {
       if (!nftAddress) {
@@ -86,13 +91,17 @@ async function activate721Nft(session) {
     const nftList = [
       [
         tokenId,
-        true
+        isMint
       ]
     ];
     const nftListArr = [];
     nftList.forEach((item) => {
       nftListArr.push(item[0].toString());
-      nftListArr.push('0x01');
+      if (isMint) {
+        nftListArr.push('0x01');
+      } else {
+        nftListArr.push('0x00');
+      }
     });
     const signature = await bc.soliditySha3Sign(
       account,