diff --git a/changes/1.5.0.md b/changes/1.5.0.md
index 7fddd99756c..c6576a73e02 100644
--- a/changes/1.5.0.md
+++ b/changes/1.5.0.md
@@ -32,6 +32,7 @@ Seata 是一款开源的分布式事务解决方案，提供高性能和简单
 - [[#3654](https://github.com/seata/seata/pull/3654)] 修正拼写，applicationContex -> applicationContext
 - [[#3687](https://github.com/seata/seata/pull/3687)] 修复某些场景下无法重试全局锁的问题
 - [[#3689](https://github.com/seata/seata/pull/3689)] 修正script/server/config/file.properties中属性编写错误
+- [[#3700](https://github.com/seata/seata/pull/3700)] 优化buildLockKey方法的效率
 
   ### test:
 
diff --git a/changes/en-us/1.5.0.md b/changes/en-us/1.5.0.md
index ed081f96cdf..726e47c4e9a 100644
--- a/changes/en-us/1.5.0.md
+++ b/changes/en-us/1.5.0.md
@@ -33,6 +33,7 @@
 - [[#3654](https://github.com/seata/seata/pull/3654)] fix typo,applicationContex -> applicationContext
 - [[#3687](https://github.com/seata/seata/pull/3687)] fix the case that could not retry acquire global lock
 - [[#3689](https://github.com/seata/seata/pull/3689)] modify the attribute prefix in the file file.properties
+- [[#3700](https://github.com/seata/seata/pull/3700)] optimize the speed of buildLockKey
 
 
   ### test:	
diff --git a/rm-datasource/src/main/java/io/seata/rm/datasource/exec/BaseTransactionalExecutor.java b/rm-datasource/src/main/java/io/seata/rm/datasource/exec/BaseTransactionalExecutor.java
index 1109bb92f67..35e7bde2bc2 100644
--- a/rm-datasource/src/main/java/io/seata/rm/datasource/exec/BaseTransactionalExecutor.java
+++ b/rm-datasource/src/main/java/io/seata/rm/datasource/exec/BaseTransactionalExecutor.java
@@ -302,9 +302,10 @@ protected String buildLockKey(TableRecords rowsIncludingPK) {
         sb.append(":");
         int filedSequence = 0;
         List<Map<String, Field>> pksRows = rowsIncludingPK.pkRows();
+        List<String> primaryKeysOnlyName = getTableMeta().getPrimaryKeyOnlyName();
         for (Map<String, Field> rowMap : pksRows) {
             int pkSplitIndex = 0;
-            for (String pkName : getTableMeta().getPrimaryKeyOnlyName()) {
+            for (String pkName : primaryKeysOnlyName) {
                 if (pkSplitIndex > 0) {
                     sb.append("_");
                 }
diff --git a/rm-datasource/src/main/java/io/seata/rm/datasource/exec/mysql/MySQLInsertExecutor.java b/rm-datasource/src/main/java/io/seata/rm/datasource/exec/mysql/MySQLInsertExecutor.java
index 710ff546089..63db3728a53 100644
--- a/rm-datasource/src/main/java/io/seata/rm/datasource/exec/mysql/MySQLInsertExecutor.java
+++ b/rm-datasource/src/main/java/io/seata/rm/datasource/exec/mysql/MySQLInsertExecutor.java
@@ -84,7 +84,7 @@ public Map<String,List<Object>> getPkValues() throws SQLException {
         List<String> pkColumnNameList = getTableMeta().getPrimaryKeyOnlyName();
         Boolean isContainsPk = containsPK();
         //when there is only one pk in the table
-        if (getTableMeta().getPrimaryKeyOnlyName().size() == 1) {
+        if (pkColumnNameList.size() == 1) {
             if (isContainsPk) {
                 pkValuesMap = getPkValuesByColumn();
             }
diff --git a/rm-datasource/src/main/java/io/seata/rm/datasource/exec/oracle/OracleInsertExecutor.java b/rm-datasource/src/main/java/io/seata/rm/datasource/exec/oracle/OracleInsertExecutor.java
index 00e3ac1b29b..2ae7f3f1c65 100644
--- a/rm-datasource/src/main/java/io/seata/rm/datasource/exec/oracle/OracleInsertExecutor.java
+++ b/rm-datasource/src/main/java/io/seata/rm/datasource/exec/oracle/OracleInsertExecutor.java
@@ -64,12 +64,10 @@ public Map<String,List<Object>> getPkValues() throws SQLException {
         //when there is only one pk in the table
         if (isContainsPk) {
             pkValuesMap = getPkValuesByColumn();
-        }
-        else if (containsColumns()) {
+        } else if (containsColumns()) {
             String columnName = getTableMeta().getPrimaryKeyOnlyName().get(0);
             pkValuesMap = Collections.singletonMap(columnName, getGeneratedKeys());
-        }
-        else {
+        } else {
             pkValuesMap = getPkValuesByColumn();
         }
         return pkValuesMap;
@@ -82,9 +80,9 @@ public Map<String,List<Object>> getPkValuesByColumn() throws SQLException {
         List<Object> pkValues = pkValuesMap.get(pkKey);
 
         if (!pkValues.isEmpty() && pkValues.get(0) instanceof SqlSequenceExpr) {
-            pkValuesMap.put(pkKey,getPkValuesBySequence((SqlSequenceExpr) pkValues.get(0)));
+            pkValuesMap.put(pkKey, getPkValuesBySequence((SqlSequenceExpr) pkValues.get(0)));
         } else if (pkValues.size() == 1 && pkValues.get(0) instanceof SqlMethodExpr) {
-            pkValuesMap.put(pkKey,getGeneratedKeys());
+            pkValuesMap.put(pkKey, getGeneratedKeys());
         } else if (pkValues.size() == 1 && pkValues.get(0) instanceof Null) {
             throw new NotSupportYetException("oracle not support null");
         }
diff --git a/rm-datasource/src/main/java/io/seata/rm/datasource/exec/postgresql/PostgresqlInsertExecutor.java b/rm-datasource/src/main/java/io/seata/rm/datasource/exec/postgresql/PostgresqlInsertExecutor.java
index 0db959e0199..a51e63e4ce7 100644
--- a/rm-datasource/src/main/java/io/seata/rm/datasource/exec/postgresql/PostgresqlInsertExecutor.java
+++ b/rm-datasource/src/main/java/io/seata/rm/datasource/exec/postgresql/PostgresqlInsertExecutor.java
@@ -67,12 +67,10 @@ public Map<String,List<Object>> getPkValues() throws SQLException {
         //when there is only one pk in the table
         if (isContainsPk) {
             pkValuesMap = getPkValuesByColumn();
-        }
-        else if (containsColumns()) {
+        } else if (containsColumns()) {
             String columnName = getTableMeta().getPrimaryKeyOnlyName().get(0);
             pkValuesMap = Collections.singletonMap(columnName, getGeneratedKeys());
-        }
-        else {
+        } else {
             pkValuesMap = getPkValuesByColumn();
         }
         return pkValuesMap;
@@ -84,11 +82,11 @@ public Map<String,List<Object>> getPkValuesByColumn() throws SQLException {
         String pkKey = pkValuesMap.keySet().iterator().next();
         List<Object> pkValues = pkValuesMap.get(pkKey);
         if (!pkValues.isEmpty() && pkValues.get(0) instanceof SqlSequenceExpr) {
-            pkValuesMap.put(pkKey,getPkValuesBySequence((SqlSequenceExpr) pkValues.get(0)));
+            pkValuesMap.put(pkKey, getPkValuesBySequence((SqlSequenceExpr) pkValues.get(0)));
         } else if (!pkValues.isEmpty() && pkValues.get(0) instanceof SqlMethodExpr) {
-            pkValuesMap.put(pkKey,getGeneratedKeys());
+            pkValuesMap.put(pkKey, getGeneratedKeys());
         } else if (!pkValues.isEmpty() && pkValues.get(0) instanceof SqlDefaultExpr) {
-            pkValuesMap.put(pkKey,getPkValuesByDefault());
+            pkValuesMap.put(pkKey, getPkValuesByDefault());
         }
 
         return pkValuesMap;
diff --git a/rm-datasource/src/main/java/io/seata/rm/datasource/sql/struct/TableRecords.java b/rm-datasource/src/main/java/io/seata/rm/datasource/sql/struct/TableRecords.java
index 4e7c6e786d0..f04b889553c 100755
--- a/rm-datasource/src/main/java/io/seata/rm/datasource/sql/struct/TableRecords.java
+++ b/rm-datasource/src/main/java/io/seata/rm/datasource/sql/struct/TableRecords.java
@@ -185,6 +185,7 @@ public static TableRecords empty(TableMeta tableMeta) {
     public static TableRecords buildRecords(TableMeta tmeta, ResultSet resultSet) throws SQLException {
         TableRecords records = new TableRecords(tmeta);
         ResultSetMetaData resultSetMetaData = resultSet.getMetaData();
+        Map<String, ColumnMeta> primaryKeyMap = tmeta.getPrimaryKeyMap();
         int columnCount = resultSetMetaData.getColumnCount();
 
         while (resultSet.next()) {
@@ -195,7 +196,7 @@ public static TableRecords buildRecords(TableMeta tmeta, ResultSet resultSet) th
                 int dataType = col.getDataType();
                 Field field = new Field();
                 field.setName(col.getColumnName());
-                if (tmeta.getPrimaryKeyMap().containsKey(colName)) {
+                if (primaryKeyMap.containsKey(colName)) {
                     field.setKeyType(KeyType.PRIMARY_KEY);
                 }
                 field.setType(dataType);