diff --git a/docs/content.zh/docs/connectors/pipeline-connectors/elasticsearch.md b/docs/content.zh/docs/connectors/pipeline-connectors/elasticsearch.md
index 939cfc6d8bb..666dcfed3d7 100644
--- a/docs/content.zh/docs/connectors/pipeline-connectors/elasticsearch.md
+++ b/docs/content.zh/docs/connectors/pipeline-connectors/elasticsearch.md
@@ -146,7 +146,7 @@ Pipeline Connector Options
     <tr>
       <td>batch.size.max.bytes</td>
       <td>optional</td>
-      <td style="word-wrap: break-word;">5242880</td>
+      <td style="word-wrap: break-word;">52428800</td>
       <td>Long</td>
       <td>每个批量请求的缓冲操作在内存中的最大值(以byte为单位)。</td>
     </tr>
diff --git a/docs/content/docs/connectors/pipeline-connectors/elasticsearch.md b/docs/content/docs/connectors/pipeline-connectors/elasticsearch.md
index 579d7015e9f..70413cf3593 100644
--- a/docs/content/docs/connectors/pipeline-connectors/elasticsearch.md
+++ b/docs/content/docs/connectors/pipeline-connectors/elasticsearch.md
@@ -146,7 +146,7 @@ Pipeline Connector Options
     <tr>
       <td>batch.size.max.bytes</td>
       <td>optional</td>
-      <td style="word-wrap: break-word;">5242880</td>
+      <td style="word-wrap: break-word;">52428800</td>
       <td>Long</td>
       <td>The maximum size of batch requests in bytes.</td>
     </tr>
diff --git a/flink-cdc-connect/flink-cdc-pipeline-connectors/flink-cdc-pipeline-connector-elasticsearch/src/main/java/org/apache/flink/cdc/connectors/elasticsearch/sink/ElasticsearchDataSinkOptions.java b/flink-cdc-connect/flink-cdc-pipeline-connectors/flink-cdc-pipeline-connector-elasticsearch/src/main/java/org/apache/flink/cdc/connectors/elasticsearch/sink/ElasticsearchDataSinkOptions.java
index b2629040059..8323dd228ca 100644
--- a/flink-cdc-connect/flink-cdc-pipeline-connectors/flink-cdc-pipeline-connector-elasticsearch/src/main/java/org/apache/flink/cdc/connectors/elasticsearch/sink/ElasticsearchDataSinkOptions.java
+++ b/flink-cdc-connect/flink-cdc-pipeline-connectors/flink-cdc-pipeline-connector-elasticsearch/src/main/java/org/apache/flink/cdc/connectors/elasticsearch/sink/ElasticsearchDataSinkOptions.java
@@ -59,7 +59,7 @@ public class ElasticsearchDataSinkOptions {
     public static final ConfigOption<Long> MAX_BATCH_SIZE_IN_BYTES =
             ConfigOptions.key("batch.size.max.bytes")
                     .longType()
-                    .defaultValue(5L * 1024L * 1024L)
+                    .defaultValue(50L * 1024L * 1024L)
                     .withDescription("The maximum size of batch requests in bytes.");
 
     /** The maximum time to wait for incomplete batches before flushing. */