diff --git a/sharding-proxy/sharding-proxy-transport/sharding-proxy-transport-postgresql/src/main/java/org/apache/shardingsphere/shardingproxy/transport/postgresql/packet/command/query/text/PostgreSQLDataRowPacket.java b/sharding-proxy/sharding-proxy-transport/sharding-proxy-transport-postgresql/src/main/java/org/apache/shardingsphere/shardingproxy/transport/postgresql/packet/command/query/text/PostgreSQLDataRowPacket.java
index ee4b0ac003266a1b2a4112bd1171a921e9209016..9eabe5a9c31aaf60532bc7a70c9db1e361c2714d 100644
--- a/sharding-proxy/sharding-proxy-transport/sharding-proxy-transport-postgresql/src/main/java/org/apache/shardingsphere/shardingproxy/transport/postgresql/packet/command/query/text/PostgreSQLDataRowPacket.java
+++ b/sharding-proxy/sharding-proxy-transport/sharding-proxy-transport-postgresql/src/main/java/org/apache/shardingsphere/shardingproxy/transport/postgresql/packet/command/query/text/PostgreSQLDataRowPacket.java
@@ -50,7 +50,7 @@ public final class PostgreSQLDataRowPacket implements PostgreSQLPacket {
                     payload.writeBytes((byte[]) each);
                 } else {
                     String columnData = each.toString();
-                    payload.writeInt4(columnData.length());
+                    payload.writeInt4(columnData.getBytes().length);
                     payload.writeStringEOF(columnData);
                 }
             }