diff --git a/server/web3sign/metadata/BlockChainDb.js b/server/web3sign/metadata/BcEventDb.js
similarity index 100%
rename from server/web3sign/metadata/BlockChainDb.js
rename to server/web3sign/metadata/BcEventDb.js
diff --git a/server/web3sign/metadata/factory.js b/server/web3sign/metadata/factory.js
index 5cab7d6..8f40657 100644
--- a/server/web3sign/metadata/factory.js
+++ b/server/web3sign/metadata/factory.js
@@ -90,9 +90,9 @@ async function init() {
                     '',
                     'Config'
                    );
-  registerMetaClass(configDir + 'blockchaindb_mysql.json',
+  registerMetaClass(configDir + 'bcevent_mysql.json',
                     '',
-                    'BlockChainDb'
+                    'BcEventDb'
                    );
   registerMetaClass(configDir + 'web3sign.cluster.json',
                     '',
@@ -105,8 +105,8 @@ async function init() {
                    );
   load();
   {
-    traverseMetaList('BlockChainDb', (dbConf, idx) => {
-      app.registerDb('BlockChainDb' + idx, dbConf);
+    traverseMetaList('BcEventDb', (dbConf, idx) => {
+      app.registerDb('BcEventDb' + idx, dbConf);
     });
     traverseMetaList('Web3Sign', (item, idx) => {
       if (item['instance_id'] == app.getInstanceId()) {