diff --git a/seer-mp/seer-mp-service-app/src/main/java/com/seer/teach/mp/app/controller/resp/TestChildCharacterResp.java b/seer-mp/seer-mp-service-app/src/main/java/com/seer/teach/mp/app/controller/resp/TestChildCharacterResp.java
new file mode 100644
index 0000000..e77f4a2
--- /dev/null
+++ b/seer-mp/seer-mp-service-app/src/main/java/com/seer/teach/mp/app/controller/resp/TestChildCharacterResp.java
@@ -0,0 +1,21 @@
+package com.seer.teach.mp.app.controller.resp;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+@Schema(description = "测试孩子性格响应对象")
+@Data
+public class TestChildCharacterResp {
+
+    @Schema(description = "性格分析结果")
+    private String characterAnalysis;
+
+    @Schema(description = "性格特征")
+    private String characterTraits;
+
+    @Schema(description = "建议")
+    private String suggestions;
+
+    @Schema(description = "性格类型")
+    private String characterType;
+}
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diff --git a/seer-mp/seer-mp-service-app/src/main/java/com/seer/teach/mp/app/service/IAppParentAgentActivityService.java b/seer-mp/seer-mp-service-app/src/main/java/com/seer/teach/mp/app/service/IAppParentAgentActivityService.java
new file mode 100644
index 0000000..13014a9
--- /dev/null
+++ b/seer-mp/seer-mp-service-app/src/main/java/com/seer/teach/mp/app/service/IAppParentAgentActivityService.java
@@ -0,0 +1,63 @@
+package com.seer.teach.mp.app.service;
+
+import com.seer.teach.mp.app.controller.req.AppMpSignUpActivityReq;
+import com.seer.teach.mp.app.controller.req.TestChildCharacterReq;
+import com.seer.teach.mp.app.controller.resp.AppMpSignUpActivityResp;
+import com.seer.teach.mp.app.controller.resp.TestChildCharacterResp;
+
+/**
+ * <p>
+ * 家长参与代理商活动服务类
+ * </p>
+ *
+ * @author Lingma
+ * @since 2025-12-30
+ */
+public interface IAppParentAgentActivityService {
+
+    /**
+     * 报名活动
+     *
+     * @param request 报名信息
+     * @param parentId 家长ID
+     * @return true表示成功，false表示失败
+     */
+    boolean signUpForActivityWithInfo(AppMpSignUpActivityReq request, Integer parentId);
+
+    /**
+     * 更新活动信息
+     *
+     * @param request 活动信息
+     * @param parentId 家长ID
+     * @return true表示成功，false表示失败
+     */
+    boolean updateActivityInfo(AppMpSignUpActivityReq request, Integer parentId);
+
+    /**
+     * 取消报名
+     *
+     * @param id       关系ID
+     * @param parentId 家长ID
+     * @return true表示成功，false表示失败
+     */
+    boolean cancelSignUp(Integer id, Integer parentId);
+
+    /**
+     * 获取报名信息
+     *
+     * @param agentId 代理商ID
+     * @param activityId 活动ID
+     * @param parentId 家长ID
+     * @return 报名信息
+     */
+    AppMpSignUpActivityResp getByActivityIdAndParentId(Integer agentId, Integer activityId, Integer parentId);
+
+    /**
+     * 测试孩子性格
+     *
+     * @param request 测试请求对象
+     * @param parentId 家长ID
+     * @return 性格测试结果
+     */
+    TestChildCharacterResp testChildCharacter(TestChildCharacterReq request, Integer parentId);
+}
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