diff --git a/server/web3bcspider/services/pull_bcevent.js b/server/web3bcspider/services/pull_bcevent.js
index 4fb0491..2ad8bb5 100644
--- a/server/web3bcspider/services/pull_bcevent.js
+++ b/server/web3bcspider/services/pull_bcevent.js
@@ -172,6 +172,7 @@ class PullBcEvent extends BaseService {
       const nowTime = utils.getUtcTime();
       const returnValues = event['returnValues'];
       const hashCode = await this.calcHashCode(utils.jsonEncode(event));
+      const rawData = utils.jsonEncode(event);
       const {err} = await dbpool.execBcEventConn(
         app,
         'upsert',
@@ -195,7 +196,7 @@ class PullBcEvent extends BaseService {
           ['contract_address', this.getContractAddress()],
           ['contract_name', this.getContractName()],
           ['block_number', event['blockNumber']],
-          ['raw_data', utils.jsonEncode(event)],
+          ['raw_data', rawData.length < 1024 * 1024 ? rawData : ''],
           ['return_values', utils.jsonEncode(returnValues)],
           ['createtime', utils.getUtcTime()],
           ['modifytime', utils.getUtcTime()],