diff --git a/mybatis-flex-core/src/main/java/com/mybatisflex/core/table/IdInfo.java b/mybatis-flex-core/src/main/java/com/mybatisflex/core/table/IdInfo.java
index 0561fa4a..390b9cf0 100644
--- a/mybatis-flex-core/src/main/java/com/mybatisflex/core/table/IdInfo.java
+++ b/mybatis-flex-core/src/main/java/com/mybatisflex/core/table/IdInfo.java
@@ -17,6 +17,8 @@ package com.mybatisflex.core.table;
 
 import com.mybatisflex.annotation.Id;
 import com.mybatisflex.annotation.KeyType;
+import com.mybatisflex.core.FlexGlobalConfig;
+import com.mybatisflex.core.util.StringUtil;
 
 public class IdInfo extends ColumnInfo {
 
@@ -53,16 +55,38 @@ public class IdInfo extends ColumnInfo {
         if (Number.class.isAssignableFrom(columnInfo.getPropertyType())) {
             keyType = KeyType.Auto;
         } else {
-            keyType = KeyType.None;
+            initDefaultKeyType();
         }
     }
 
+
     public IdInfo(Id id) {
         this.keyType = id.keyType();
         this.value = id.value();
         this.before = id.before();
+
+        initDefaultKeyType();
     }
 
+    /**
+     * 用户未配置 keyType 是，配置默认的 key Type
+     */
+    private void initDefaultKeyType() {
+        if (this.keyType == null || this.keyType == KeyType.None) {
+            FlexGlobalConfig.KeyConfig defaultKeyConfig = FlexGlobalConfig.getDefaultConfig().getKeyConfig();
+            if (defaultKeyConfig != null) {
+                if (defaultKeyConfig.getKeyType() != null) {
+                    this.keyType = defaultKeyConfig.getKeyType();
+                    this.before = defaultKeyConfig.isBefore();
+                }
+                if (StringUtil.isBlank(this.value) && StringUtil.isNotBlank(defaultKeyConfig.getValue())) {
+                    this.value = defaultKeyConfig.getValue();
+                }
+            }
+        }
+    }
+
+
     public KeyType getKeyType() {
         return keyType;
     }
diff --git a/mybatis-flex-core/src/main/java/com/mybatisflex/core/table/TableInfo.java b/mybatis-flex-core/src/main/java/com/mybatisflex/core/table/TableInfo.java
index 8ff6cf40..650fd308 100644
--- a/mybatis-flex-core/src/main/java/com/mybatisflex/core/table/TableInfo.java
+++ b/mybatis-flex-core/src/main/java/com/mybatisflex/core/table/TableInfo.java
@@ -370,11 +370,14 @@ public class TableInfo {
         this.primaryColumns = new String[primaryKeyList.size()];
 
         List<String> insertIdFields = new ArrayList<>();
+
         for (int i = 0; i < primaryKeyList.size(); i++) {
             IdInfo idInfo = primaryKeyList.get(i);
             primaryColumns[i] = idInfo.getColumn();
 
-            if (idInfo.getKeyType() != KeyType.Auto && (idInfo.getBefore() != null && idInfo.getBefore())) {
+            if (idInfo.getKeyType() != KeyType.Auto
+                || (idInfo.getBefore() != null && idInfo.getBefore())
+            ) {
                 insertIdFields.add(idInfo.getColumn());
             }