diff --git a/src/main/java/com/rj/service/IMemberInfoService.java b/src/main/java/com/rj/service/IMemberInfoService.java
new file mode 100644
index 0000000..c268a1f
--- /dev/null
+++ b/src/main/java/com/rj/service/IMemberInfoService.java
@@ -0,0 +1,40 @@
+package com.rj.service;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.rj.entity.MemberInfo;
+
+import java.util.Map;
+
+public interface IMemberInfoService extends IService<MemberInfo> {
+
+    Map<String, Object> add(MemberInfo entity);
+
+    Map<String, Object> update(MemberInfo entity);
+
+    Map<String, Object> deleteById(String id);
+
+    Map<String, Object> pageQuery(
+            Integer current,
+            Integer size,
+            String phone,
+            String nickname,
+            String inviteCode,
+            String parentId,
+            String userLevel,
+            Integer status,
+            Integer auditStatus,
+            Integer canConsign);
+
+    /**
+     * 一次性查询全部数据（支持与 {@link #pageQuery} 相同的可选过滤条件，不分页）。
+     */
+    Map<String, Object> listAll(
+            String phone,
+            String nickname,
+            String inviteCode,
+            String parentId,
+            String userLevel,
+            Integer status,
+            Integer auditStatus,
+            Integer canConsign);
+}