diff --git a/february-patient-common/src/main/java/com/february/patient/domain/Department.java b/february-patient-common/src/main/java/com/february/patient/domain/Department.java
new file mode 100644
index 0000000..b66decc
--- /dev/null
+++ b/february-patient-common/src/main/java/com/february/patient/domain/Department.java
@@ -0,0 +1,46 @@
+package com.february.patient.domain;
+
+/**
+ * @program: february-patient-circle
+ * @description:
+ * @author: Mr.Wang
+ * @create: 2023-11-02 21:49
+ **/
+
+/**
+ * 科室
+ */
+public class Department {
+    /**
+     * 科室id
+     */
+    private Integer departmentId;
+    /**
+     * 科室名称
+     */
+    private String departmentName;
+
+    @Override
+    public String toString() {
+        return "Department{" +
+                "departmentId=" + departmentId +
+                ", departmentName='" + departmentName + '\'' +
+                '}';
+    }
+
+    public Integer getDepartmentId() {
+        return departmentId;
+    }
+
+    public void setDepartmentId(Integer departmentId) {
+        this.departmentId = departmentId;
+    }
+
+    public String getDepartmentName() {
+        return departmentName;
+    }
+
+    public void setDepartmentName(String departmentName) {
+        this.departmentName = departmentName;
+    }
+}
diff --git a/february-patient-server/src/main/java/com/february/patient/controller/DepartmentController.java b/february-patient-server/src/main/java/com/february/patient/controller/DepartmentController.java
new file mode 100644
index 0000000..556faff
--- /dev/null
+++ b/february-patient-server/src/main/java/com/february/patient/controller/DepartmentController.java
@@ -0,0 +1,26 @@
+package com.february.patient.controller;
+
+import com.february.patient.domain.Department;
+import com.february.patient.service.DepartmentService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * @program: february-patient-circle
+ * @description:
+ * @author: Mr.Wang
+ * @create: 2023-11-02 21:53
+ **/
+@RestController
+@RequestMapping("/department")
+public class DepartmentController {
+    @Autowired
+    private DepartmentService departmentService;
+    @PostMapping("/findById")
+    public Department findById(@RequestParam Integer departmentId){
+        return departmentService.findById(departmentId);
+    }
+}
diff --git a/february-patient-server/src/main/java/com/february/patient/mapper/DepartmentMapper.java b/february-patient-server/src/main/java/com/february/patient/mapper/DepartmentMapper.java
new file mode 100644
index 0000000..1e00ce2
--- /dev/null
+++ b/february-patient-server/src/main/java/com/february/patient/mapper/DepartmentMapper.java
@@ -0,0 +1,14 @@
+package com.february.patient.mapper;
+
+import com.february.patient.domain.Department;
+import org.apache.ibatis.annotations.Param;
+
+/**
+ * @program: february-patient-circle
+ * @description:
+ * @author: Mr.Wang
+ * @create: 2023-11-02 21:53
+ **/
+public interface DepartmentMapper {
+    Department findById(@Param("departmentId") Integer departmentId);
+}
diff --git a/february-patient-server/src/main/java/com/february/patient/service/DepartmentService.java b/february-patient-server/src/main/java/com/february/patient/service/DepartmentService.java
new file mode 100644
index 0000000..b81cbcd
--- /dev/null
+++ b/february-patient-server/src/main/java/com/february/patient/service/DepartmentService.java
@@ -0,0 +1,13 @@
+package com.february.patient.service;
+
+import com.february.patient.domain.Department;
+
+/**
+ * @program: february-patient-circle
+ * @description:
+ * @author: Mr.Wang
+ * @create: 2023-11-02 21:54
+ **/
+public interface DepartmentService {
+    Department findById(Integer departmentId);
+}
diff --git a/february-patient-server/src/main/java/com/february/patient/service/impl/DepartmentServiceImpl.java b/february-patient-server/src/main/java/com/february/patient/service/impl/DepartmentServiceImpl.java
new file mode 100644
index 0000000..c294e10
--- /dev/null
+++ b/february-patient-server/src/main/java/com/february/patient/service/impl/DepartmentServiceImpl.java
@@ -0,0 +1,23 @@
+package com.february.patient.service.impl;
+
+import com.february.patient.domain.Department;
+import com.february.patient.mapper.DepartmentMapper;
+import com.february.patient.service.DepartmentService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+/**
+ * @program: february-patient-circle
+ * @description:
+ * @author: Mr.Wang
+ * @create: 2023-11-02 21:54
+ **/
+@Service
+public class DepartmentServiceImpl implements DepartmentService {
+    @Autowired
+    private DepartmentMapper departmentMapper;
+    @Override
+    public Department findById(Integer departmentId) {
+        return departmentMapper.findById(departmentId);
+    }
+}
diff --git a/february-patient-server/src/main/resources/mapper/patient/DepartmentMapper.xml b/february-patient-server/src/main/resources/mapper/patient/DepartmentMapper.xml
new file mode 100644
index 0000000..8701867
--- /dev/null
+++ b/february-patient-server/src/main/resources/mapper/patient/DepartmentMapper.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.february.patient.mapper.DepartmentMapper">
+    <resultMap id="Department" type="com.february.patient.domain.Department">
+        <id property="departmentId" column="department_id" />
+        <result property="departmentName" column="department_name" />
+    </resultMap>
+
+    <select id="findById" resultMap="Department">
+        select department_id,department_name from t_department where department_id=#{departmentId}
+    </select>
+</mapper>