diff --git a/healthlink-his-server/healthlink-his-application/src/main/java/com/healthlink/his/web/ybmock/controller/YbMockController.java b/healthlink-his-server/healthlink-his-application/src/main/java/com/healthlink/his/web/ybmock/controller/YbMockController.java
new file mode 100644
index 000000000..4fe92a415
--- /dev/null
+++ b/healthlink-his-server/healthlink-his-application/src/main/java/com/healthlink/his/web/ybmock/controller/YbMockController.java
@@ -0,0 +1,88 @@
+package com.healthlink.his.web.ybmock.controller;
+
+import com.healthlink.his.yb.mock.domain.YbPsnInfo;
+import com.healthlink.his.yb.mock.service.YbMockService;
+import com.core.common.core.domain.R;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.AllArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.*;
+
+/**
+ * 医保模拟接口 Controller
+ */
+@RestController
+@RequestMapping("/yb-mock")
+@Slf4j
+@AllArgsConstructor
+@Tag(name = "医保模拟接口")
+public class YbMockController {
+
+    private final YbMockService ybMockService;
+
+    @PostMapping("/{apiCode}")
+    @Operation(summary = "医保模拟接口")
+    public R<?> handleApi(@PathVariable String apiCode, @RequestBody Map<String, String> params) {
+        log.info("收到医保请求: apiCode={}, params={}", apiCode, params);
+        try {
+            Map<String, Object> result;
+            switch (apiCode) {
+                case "1101":
+                    result = ybMockService.getPatientInfo(params);
+                    break;
+                case "2201":
+                    result = ybMockService.clinicRegister(params);
+                    break;
+                case "2203":
+                    result = ybMockService.clinicPrescription(params);
+                    break;
+                case "2207":
+                    result = ybMockService.clinicSettle(params);
+                    break;
+                case "3201":
+                    result = ybMockService.inpatientRegister(params);
+                    break;
+                case "3203":
+                    result = ybMockService.inpatientPrescription(params);
+                    break;
+                case "3207":
+                    result = ybMockService.inpatientSettle(params);
+                    break;
+                default:
+                    result = new HashMap<>();
+                    result.put("infcode", -1);
+                    result.put("err_msg", "未支持的接口: " + apiCode);
+            }
+            return R.ok(result);
+        } catch (Exception e) {
+            log.error("医保接口调用失败", e);
+            Map<String, Object> error = new HashMap<>();
+            error.put("infcode", -1);
+            error.put("err_msg", "系统错误: " + e.getMessage());
+            return R.ok(error);
+        }
+    }
+
+    @GetMapping("/psn/{psnNo}")
+    @Operation(summary = "获取参保人信息")
+    public R<?> getPatientInfo(@PathVariable String psnNo) {
+        Map<String, String> params = new HashMap<>();
+        params.put("psn_no", psnNo);
+        return R.ok(ybMockService.getPatientInfo(params));
+    }
+
+    @PostMapping("/psn")
+    @Operation(summary = "添加参保人信息")
+    public R<?> addPsnInfo(@RequestBody YbPsnInfo psnInfo) {
+        return R.ok(ybMockService.addPsnInfo(psnInfo));
+    }
+
+    @GetMapping("/psn/list")
+    @Operation(summary = "获取参保人列表")
+    public R<?> listPsnInfo() {
+        return R.ok(ybMockService.listPsnInfo());
+    }
+}
diff --git a/healthlink-his-server/healthlink-his-application/src/main/java/com/healthlink/his/yb/mock/service/YbMockService.java b/healthlink-his-server/healthlink-his-application/src/main/java/com/healthlink/his/yb/mock/service/YbMockService.java
new file mode 100644
index 000000000..70f52baed
--- /dev/null
+++ b/healthlink-his-server/healthlink-his-application/src/main/java/com/healthlink/his/yb/mock/service/YbMockService.java
@@ -0,0 +1,158 @@
+package com.healthlink.his.yb.mock.service;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.healthlink.his.yb.mock.domain.YbPsnInfo;
+import com.healthlink.his.yb.mock.mapper.YbPsnInfoMapper;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.*;
+
+/**
+ * 医保模拟服务
+ */
+@Service
+@Slf4j
+public class YbMockService {
+
+    @Autowired
+    private YbPsnInfoMapper psnInfoMapper;
+
+    public Map<String, Object> getPatientInfo(Map<String, String> params) {
+        String psnNo = params.get("psn_no");
+        log.info("获取参保人信息: psnNo={}", psnNo);
+
+        YbPsnInfo psnInfo = psnInfoMapper.selectOne(
+            new LambdaQueryWrapper<YbPsnInfo>().eq(YbPsnInfo::getPsnNo, psnNo)
+        );
+
+        if (psnInfo == null) {
+            Map<String, Object> error = new HashMap<>();
+            error.put("infcode", -1);
+            error.put("err_msg", "未找到参保人信息: " + psnNo);
+            return error;
+        }
+
+        Map<String, Object> result = new HashMap<>();
+        result.put("infcode", 0);
+        result.put("output", buildPsnInfoOutput(psnInfo));
+        return result;
+    }
+
+    public Map<String, Object> clinicRegister(Map<String, String> params) {
+        log.info("门诊登记: params={}", params);
+        Map<String, Object> result = new HashMap<>();
+        result.put("infcode", 0);
+        Map<String, Object> output = new HashMap<>();
+        output.put("encounter_no", "MZ" + System.currentTimeMillis());
+        output.put("register_time", new Date().toString());
+        output.put("status", "成功");
+        result.put("output", output);
+        return result;
+    }
+
+    public Map<String, Object> clinicPrescription(Map<String, String> params) {
+        log.info("门诊处方上传: params={}", params);
+        Map<String, Object> result = new HashMap<>();
+        result.put("infcode", 0);
+        Map<String, Object> output = new HashMap<>();
+        output.put("recipe_no", "CF" + System.currentTimeMillis());
+        output.put("upload_time", new Date().toString());
+        output.put("total_amount", "156.80");
+        output.put("self_pay", "23.52");
+        output.put("insurance_pay", "133.28");
+        output.put("status", "成功");
+        result.put("output", output);
+        return result;
+    }
+
+    public Map<String, Object> clinicSettle(Map<String, String> params) {
+        log.info("门诊结算: params={}", params);
+        Map<String, Object> result = new HashMap<>();
+        result.put("infcode", 0);
+        Map<String, Object> output = new HashMap<>();
+        output.put("settle_no", "JZ" + System.currentTimeMillis());
+        output.put("total_amount", "156.80");
+        output.put("insurance_pay", "133.28");
+        output.put("self_pay", "23.52");
+        output.put("account_pay", "20.00");
+        output.put("cash_pay", "3.52");
+        output.put("settle_time", new Date().toString());
+        output.put("status", "成功");
+        result.put("output", output);
+        return result;
+    }
+
+    public Map<String, Object> inpatientRegister(Map<String, String> params) {
+        log.info("住院登记: params={}", params);
+        Map<String, Object> result = new HashMap<>();
+        result.put("infcode", 0);
+        Map<String, Object> output = new HashMap<>();
+        output.put("admission_no", "ZY" + System.currentTimeMillis());
+        output.put("admission_time", new Date().toString());
+        output.put("bed_no", "3-201-1");
+        output.put("status", "成功");
+        result.put("output", output);
+        return result;
+    }
+
+    public Map<String, Object> inpatientPrescription(Map<String, String> params) {
+        log.info("住院处方上传: params={}", params);
+        Map<String, Object> result = new HashMap<>();
+        result.put("infcode", 0);
+        Map<String, Object> output = new HashMap<>();
+        output.put("recipe_no", "ZYCF" + System.currentTimeMillis());
+        output.put("upload_time", new Date().toString());
+        output.put("total_amount", "2580.50");
+        output.put("insurance_pay", "2322.45");
+        output.put("self_pay", "258.05");
+        output.put("status", "成功");
+        result.put("output", output);
+        return result;
+    }
+
+    public Map<String, Object> inpatientSettle(Map<String, String> params) {
+        log.info("住院结算: params={}", params);
+        Map<String, Object> result = new HashMap<>();
+        result.put("infcode", 0);
+        Map<String, Object> output = new HashMap<>();
+        output.put("settle_no", "ZYJS" + System.currentTimeMillis());
+        output.put("total_amount", "15680.50");
+        output.put("insurance_pay", "14112.45");
+        output.put("self_pay", "1568.05");
+        output.put("account_pay", "1200.00");
+        output.put("cash_pay", "368.05");
+        output.put("settle_time", new Date().toString());
+        output.put("status", "成功");
+        result.put("output", output);
+        return result;
+    }
+
+    private Map<String, Object> buildPsnInfoOutput(YbPsnInfo psnInfo) {
+        Map<String, Object> output = new HashMap<>();
+        output.put("psn_no", psnInfo.getPsnNo());
+        output.put("psn_name", psnInfo.getPsnName());
+        output.put("sex_code", psnInfo.getSexCode());
+        output.put("sex_name", psnInfo.getSexName());
+        output.put("birth_date", psnInfo.getBirthDate());
+        output.put("id_card", psnInfo.getIdCard());
+        output.put("insur_type", psnInfo.getInsurType());
+        output.put("insur_area", psnInfo.getInsurArea());
+        output.put("card_no", psnInfo.getCardNo());
+        output.put("balance", psnInfo.getBalance().toString());
+        output.put("status", psnInfo.getStatus());
+        return output;
+    }
+
+    public YbPsnInfo addPsnInfo(YbPsnInfo psnInfo) {
+        psnInfo.setCreateTime(new Date());
+        psnInfo.setUpdateTime(new Date());
+        psnInfoMapper.insert(psnInfo);
+        return psnInfo;
+    }
+
+    public List<YbPsnInfo> listPsnInfo() {
+        return psnInfoMapper.selectList(new LambdaQueryWrapper<>());
+    }
+}