diff --git a/plugin/mybatis-plus-join-processor/src/main/java/com/github/yulichang/processor/EntityProcessor.java b/plugin/mybatis-plus-join-processor/src/main/java/com/github/yulichang/processor/EntityProcessor.java
index 4dbd932..0ad26c2 100644
--- a/plugin/mybatis-plus-join-processor/src/main/java/com/github/yulichang/processor/EntityProcessor.java
+++ b/plugin/mybatis-plus-join-processor/src/main/java/com/github/yulichang/processor/EntityProcessor.java
@@ -127,6 +127,7 @@ public class EntityProcessor extends AbstractProcessor {
                                 .addConstructor(tableInfo)
                                 .addFields(tableInfo)
                                 .addMethod(tableInfo)
+                                .addBuild(tableInfo)
                 );
         writerFile(tableInfo.getTagClassPackage() + "." + tableInfo.getTagClassName(), content.getContent());
         return tableInfo;
@@ -248,6 +249,18 @@ public class EntityProcessor extends AbstractProcessor {
             return this;
         }
 
+        public StringBuilderHelper addBuild(TableInfo tableInfo) {
+            sb.append("\tpublic static ").append(tableInfo.getTagClassName()).append(" build() {\n")
+                    .append("\t\treturn new ").append(tableInfo.getTagClassName()).append("();\n")
+                    .append("\t}\n");
+            newLine();
+            sb.append("\tpublic static ").append(tableInfo.getTagClassName()).append(" build(String alias) {\n")
+                    .append("\t\treturn new ").append(tableInfo.getTagClassName()).append("(alias);\n")
+                    .append("\t}\n");
+            newLine();
+            return this;
+        }
+
         private StringBuilderHelper addComment(String prefix, String comment) {
             if (StringUtil.isNotEmpty(comment)) {
                 sb.append(prefix).append("/**\n");