diff --git a/server/web3dbspider/services/events/common/BaseEventProcess.js b/server/web3dbspider/services/events/common/BaseEventProcess.js
index c605d7e..23fdbc3 100644
--- a/server/web3dbspider/services/events/common/BaseEventProcess.js
+++ b/server/web3dbspider/services/events/common/BaseEventProcess.js
@@ -565,6 +565,31 @@ class BaseEventProcess {
     }
   }
 
+  async adjustQuality(tokenId, quality) {
+    const logHead = ' adjustQuality ';
+    if (!tokenId) {
+      return;
+    }
+    if (!quality) {
+      return;
+    }
+    const {err} = await this.bcNftDbConn(
+      'update',
+      't_nft',
+      [
+        ['net_id', this.getNetId()],
+        ['contract_address', this.getContractAddress()],
+        ['token_id', tokenId],
+      ],
+      [
+        ['quality', quality],
+      ]
+    );
+    if (err) {
+      this.throwError(logHead + err);
+    }
+  }
+
   async addLog(fieldsKv) {
     const {err} = await this.bcEventDbConn(
       'insert',