diff --git a/starters/mybatis-spring-boot-starter/src/main/java/com/schbrain/framework/autoconfigure/mybatis/base/BaseServiceExtImpl.java b/starters/mybatis-spring-boot-starter/src/main/java/com/schbrain/framework/autoconfigure/mybatis/base/BaseServiceExtImpl.java
new file mode 100644
index 0000000000000000000000000000000000000000..c3b5d1cc4c230edfc4a620482d7b2d27b32d166b
--- /dev/null
+++ b/starters/mybatis-spring-boot-starter/src/main/java/com/schbrain/framework/autoconfigure/mybatis/base/BaseServiceExtImpl.java
@@ -0,0 +1,37 @@
+package com.schbrain.framework.autoconfigure.mybatis.base;
+
+import com.schbrain.common.util.BeanCopyUtils;
+import org.springframework.core.ResolvableType;
+
+import java.util.List;
+
+/**
+ * @author liaozan
+ * @since 2023/7/7
+ */
+public class BaseServiceExtImpl<M extends BaseMapper<Source>, Source extends BaseEntity, Target> extends BaseServiceImpl<M, Source> {
+
+    protected final Class<Target> targetType;
+
+    public BaseServiceExtImpl() {
+        // noinspection unchecked
+        this.targetType = (Class<Target>) ResolvableType.forInstance(this).getSuperType().getGeneric(2).getRawClass();
+    }
+
+    protected Target toTarget(Source entity) {
+        return BeanCopyUtils.copy(entity, targetType);
+    }
+
+    protected List<Target> toTargetList(List<Source> entityList) {
+        return BeanCopyUtils.copyList(entityList, targetType);
+    }
+
+    protected Source fromTarget(Target target) {
+        return BeanCopyUtils.copy(target, entityClass);
+    }
+
+    protected List<Source> fromTargetList(List<Target> targetList) {
+        return BeanCopyUtils.copyList(targetList, entityClass);
+    }
+
+}