diff --git a/mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/JoinAbstractWrapper.java b/mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/JoinAbstractWrapper.java
index b504ad12..db33dc7b 100644
--- a/mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/JoinAbstractWrapper.java
+++ b/mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/JoinAbstractWrapper.java
@@ -414,6 +414,12 @@ public Children applyFunc(boolean condition, String applySql,
                             Arrays.stream(funcConsumer.getArgs()).map(func -> {
                                 if (func instanceof Fun) {
                                     Fun<?, ?> fun = (Fun<?, ?>) func;
+                                    if (fun.isSub()) {
+                                        @SuppressWarnings("rawtypes")
+                                        MPJLambdaWrapper wrapper = fun.getSub().apply((MPJLambdaWrapper) subInstance(fun.getClazz()));
+                                        return WrapperUtils.buildUnionSqlByWrapper(fun.getClazz(),
+                                                fun.getSub().apply(wrapper));
+                                    }
                                     return columnToString(index, fun.getAlias(), fun.getFunc(), false, PrefixEnum.CD_FIRST, false);
                                 }
                                 return columnToString(index, null, func, false, PrefixEnum.CD_FIRST, false);
diff --git a/mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/unit/ApplyFuncTest.java b/mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/unit/ApplyFuncTest.java
index 81e011f6..1fadd7eb 100644
--- a/mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/unit/ApplyFuncTest.java
+++ b/mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/unit/ApplyFuncTest.java
@@ -57,4 +57,26 @@ void applyFunc() {
         list1.forEach(System.out::println);
     }
 
+    @Test
+    void applyFunc1() {
+        ThreadLocalUtils.set("""
+                SELECT
+                    t.pid, t.`name`, t.`json`, t.sex, t.head_img, t.create_time, t.address_id,
+                    t.address_id2, t.del, t.create_by, t.update_by
+                FROM `user` t
+                    LEFT JOIN address t1 ON (t1.user_id = t.id)
+                WHERE t.del = false
+                    AND t1.del = false
+                    AND (concat(t.id, t.id, (SELECT st.id, st.id FROM `user` st WHERE st.del = false AND (st.id = ? AND st.id = ?)), ?) IS NOT NULL)
+                """);
+        JoinWrappers.lambda(UserDO.class)
+                .selectAll(UserDO.class, UserDO::getId)
+                .leftJoin(AddressDO.class, AddressDO::getUserId, UserDO::getId)
+                .applyFunc("concat(%s, %s, %s, {0}) is not null", arg -> arg.accept(
+                        UserDO::getId,
+                        Fun.f("t", UserDO::getId),
+                        Fun.f(UserDO.class, user -> user.select(UserDO::getId).eq(UserDO::getId, 1))
+                ), "12")
+                .list();
+    }
 }
diff --git a/pom.xml b/pom.xml
index f7b71d81..c0484647 100644
--- a/pom.xml
+++ b/pom.xml
@@ -44,7 +44,7 @@
     </modules>
 
     <properties>
-        <revision>1.5.2</revision>
+        <revision>1.5.3</revision>
         <mybatis.plus.version>3.5.9</mybatis.plus.version>
 
         <jdkVersion>17</jdkVersion>