diff --git a/doc/BlockChain.py b/doc/BlockChain.py
index 3f29b491..9d3e89a9 100644
--- a/doc/BlockChain.py
+++ b/doc/BlockChain.py
@@ -98,6 +98,7 @@ class BlockChain(object):
                 'group': 'BlockChain',
                 'url': 'webapp/index.php?c=BlockChain&a=shardMixByUser',
                 'params': [
+                    ['item_id', '', '指定的英雄id或者武器id'],
                     ['token_ids', '', 'token_ids多个用|分割'],
                 ],
                 'response': [
diff --git a/webapp/controller/BlockChainController.class.php b/webapp/controller/BlockChainController.class.php
index 22ddef80..6796fab1 100644
--- a/webapp/controller/BlockChainController.class.php
+++ b/webapp/controller/BlockChainController.class.php
@@ -169,9 +169,96 @@ class BlockChainController extends BaseAuthedController {
     public function shardMixByUser()
     {
         $tokenIds = explode('|', getReqVal('token_ids', ''));
+        $itemId = getReqVal('item_id', '');
+
         $tokenId = '';
         $tokenType = '';
-        $itemId = 0;
+
+        if (count($tokenIds) <= 0) {
+            myself()->_rspErr(1, 'token_ids paramaer error');
+            return;
+        }
+
+        $part = 0;
+        $hasSpecHero = false;
+        $hasSpecGun = false;
+        $specCount = 0;
+        foreach ($tokenIds as $itemId) {
+            $itemMeta = mt\Item::get($itemId);
+            if (!$itemMeta || !mt\Item::isFragment($itemMeta)) {
+                myself()->_rspErr(1, 'token_ids paramaer error');
+                return;
+            }
+            if ($part == 0) {
+                if (!($itemMeta['sub_type'] == 3 ||
+                     $itemMeta['sub_type'] == 4)) {
+                    $part = $itemMeta['sub_type'];
+                } else {
+                    if ($itemMeta['sub_type'] == 3) {
+                        $hasSpecHero = true;
+                    }
+                    if ($itemMeta['sub_type'] == 4) {
+                        $hasGunHero = true;
+                    }
+                    ++$specCount;
+                }
+            } else {
+                if ($part != $itemMeta['sub_type']) {
+                    myself()->_rspErr(1, 'token_ids paramaer error');
+                    return;
+                }
+            }
+        }
+        if ($specCount > 1) {
+            myself()->_rspErr(1, 'token_ids paramaer error');
+            return;
+        }
+        if ($part == 1) {
+            if ($hasSpecGun) {
+                myself()->_rspErr(1, 'token_ids paramaer error');
+                return;
+            }
+            $tokenType = Nft::HERO_TYPE;
+            if (!mt\Item::canMixHero($tokenIds)) {
+                myself()->_rspErr(1, 'token_ids paramaer error');
+                return;
+            }
+            if ($hasSpecHero) {
+                $itemMeta = mt\Item::get($itemId);
+                if (!$itemMeta || $itemMeta['type'] != mt\Item::HERO_TYPE) {
+                    myself()->_rspErr(1, 'token_ids paramaer error');
+                    return;
+                }
+            }
+        } else if ($part == 2) {
+            if ($hasSpecHero) {
+                myself()->_rspErr(1, 'token_ids paramaer error');
+                return;
+            }
+            $tokenType = Nft::EQUIP_TYPE;
+            if (!mt\Item::canMixGun($tokenIds)) {
+                myself()->_rspErr(1, 'token_ids paramaer error');
+                return;
+            }
+            if ($hasSpecGun) {
+                $itemMeta = mt\Item::get($itemId);
+                if (!$itemMeta || $itemMeta['type'] != mt\Item::GUN_TYPE) {
+                    myself()->_rspErr(1, 'token_ids paramaer error');
+                    return;
+                }
+            }
+        } else {
+            myself()->_rspErr(1, 'token_ids paramaer error');
+            return;
+        }
+
+        $tokenId = BuyRecord::genOrderId
+                 (
+                     2006,
+                     phpcommon\BC_FUNC_CREATION,
+                     myself()->_getNowTime(),
+                     myself()->_getOpenId()
+                 );
 
         $params = array(
             'c' => 'BcService',
@@ -181,7 +268,6 @@ class BlockChainController extends BaseAuthedController {
             'account' => myself()->_getOpenId(),
             'token_id' => $tokenId,
             'token_type' => $tokenType,
-            'item_uniid' => $itemUniId,
             'item_id' => $itemId,
             'token_ids' => implode('|', $tokenIds)
         );
diff --git a/webapp/mt/Item.php b/webapp/mt/Item.php
index 0247fad7..0c88dd98 100644
--- a/webapp/mt/Item.php
+++ b/webapp/mt/Item.php
@@ -270,6 +270,65 @@ class Item {
         return $metaList;
     }
 
+    public static function isFragment($itemMeta)
+    {
+        return $itemMeta['type'] == self::FRAGMENT_TYPE;
+    }
+
+    public static function canMixHero($itemIds) {
+        $ok = true;
+        $heroItemIds = array(
+            110110,
+            110120,
+            110130,
+            110140,
+            110150,
+            110160,
+            110170,
+            110180
+        );
+        foreach ($heroItemIds as $itemId1) {
+            $found = false;
+            foreach ($itemIds as $itemId2) {
+                if ($itemId1 == $itemId2) {
+                    $found = true;
+                    break;
+                }
+            }
+            if (!$found) {
+                return false;
+            }
+        }
+        return $ok;
+    }
+
+    public static function canMixGun($itemIds) {
+        $ok = true;
+        $gunItemIds = array(
+            110210,
+            110220,
+            110230,
+            110240,
+            110250,
+            110260,
+            110270,
+            110280
+        );
+        foreach ($gunItemIds as $itemId1) {
+            $found = false;
+            foreach ($itemIds as $itemId2) {
+                if ($itemId1 == $itemId2) {
+                    $found = true;
+                    break;
+                }
+            }
+            if (!$found) {
+                return false;
+            }
+        }
+        return $ok;
+    }
+
     protected static function getMetaList()
     {
         if (!self::$metaList) {