diff --git a/pom.xml b/pom.xml
index aa1e152..fca73a7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -59,6 +59,21 @@
             <artifactId>validation-api</artifactId>
             <version>2.0.1.Final</version>
         </dependency>
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-spatial</artifactId>
+            <version>5.4.32.Final</version> <!-- 或其他合适的版本 -->
+        </dependency>
+        <dependency>
+            <groupId>org.hibernate.validator</groupId>
+            <artifactId>hibernate-validator</artifactId>
+            <version>6.2.0.Final</version> <!-- 请检查最新版本 -->
+        </dependency>
+        <dependency>
+            <groupId>org.locationtech.jts</groupId>
+            <artifactId>jts-core</artifactId>
+            <version>1.18.0</version> <!-- 请使用最新版本 -->
+        </dependency>
     </dependencies>
 
     <build>
diff --git a/src/main/java/com/waterquality/projectmanagement/controller/FacilityController.java b/src/main/java/com/waterquality/projectmanagement/controller/FacilityController.java
new file mode 100644
index 0000000..89fa4db
--- /dev/null
+++ b/src/main/java/com/waterquality/projectmanagement/controller/FacilityController.java
@@ -0,0 +1,58 @@
+package com.waterquality.projectmanagement.controller;
+
+import com.waterquality.projectmanagement.Response;
+import com.waterquality.projectmanagement.dto.facility.FacilityCreateDTO;
+import com.waterquality.projectmanagement.dto.facility.FacilityVO;
+import com.waterquality.projectmanagement.entity.facility.FacilityStatus;
+import com.waterquality.projectmanagement.entity.facility.FacilityType;
+import com.waterquality.projectmanagement.service.FacilityService;
+import jakarta.validation.constraints.NotNull;
+import lombok.*;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.web.PageableDefault;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.Valid;
+import java.util.List;
+
+// FacilityController.java
+@RestController
+@RequestMapping("/api/facilities")
+@RequiredArgsConstructor
+public class FacilityController {
+
+    private final FacilityService facilityService;
+
+    @PostMapping
+    public ResponseEntity<Response<FacilityVO>> create(
+            @Valid @RequestBody FacilityCreateDTO dto) {
+        return ResponseEntity.ok(Response.newSuccess(facilityService.createFacility(dto)));
+    }
+
+    @GetMapping("/{id}")
+    public ResponseEntity<Response<FacilityVO>> getById(@PathVariable Integer id) {
+        return ResponseEntity.ok(Response.newSuccess(
+                facilityService.convertToVO(facilityService.getFacilityById(id))));
+    }
+
+    @GetMapping("/search")
+    public ResponseEntity<Response<Page<FacilityVO>>> search(
+            @RequestParam(required = false) FacilityType type,
+            @RequestParam(required = false) FacilityStatus status,
+            @RequestParam(required = false) String area,
+            @PageableDefault Pageable pageable) {
+        return ResponseEntity.ok(Response.newSuccess(
+                facilityService.searchFacilities(type, status, area, pageable)));
+    }
+
+
+    @PatchMapping("/{id}/status")
+    public ResponseEntity<Response<Void>> updateStatus(
+            @PathVariable Integer id,
+            @RequestParam @NotNull FacilityStatus status) {
+        facilityService.updateStatus(id, status);
+        return ResponseEntity.ok(Response.newSuccess(null));
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/waterquality/projectmanagement/dto/facility/FacilityCreateDTO.java b/src/main/java/com/waterquality/projectmanagement/dto/facility/FacilityCreateDTO.java
new file mode 100644
index 0000000..73179cf
--- /dev/null
+++ b/src/main/java/com/waterquality/projectmanagement/dto/facility/FacilityCreateDTO.java
@@ -0,0 +1,37 @@
+package com.waterquality.projectmanagement.dto.facility;
+
+import com.waterquality.projectmanagement.entity.facility.FacilityType;
+import lombok.*;
+import org.hibernate.validator.constraints.Range;
+
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.*;
+import java.time.LocalDate;
+
+@Data
+public class FacilityCreateDTO {
+    @NotBlank(message = "设施编码不能为空")
+    @Size(max = 30, message = "编码长度不能超过30字符")
+    private String code;
+
+    @NotNull(message = "设施类型不能为空")
+    private FacilityType type;
+
+    @NotNull(message = "经度不能为空")
+    @Range(min = -180, max = 180, message = "经度范围错误")
+    private Double longitude;
+
+    @NotNull(message = "纬度不能为空")
+    @Range(min = -90, max = 90, message = "纬度范围错误")
+    private Double latitude;
+
+    @NotBlank(message = "所属区域不能为空")
+    private String area;
+
+    @NotNull(message = "管理部门不能为空")
+    private Integer deptId;
+
+    @FutureOrPresent(message = "安装日期不能早于当前日期")
+    private LocalDate installDate;
+}
+
diff --git a/src/main/java/com/waterquality/projectmanagement/dto/facility/FacilityVO.java b/src/main/java/com/waterquality/projectmanagement/dto/facility/FacilityVO.java
new file mode 100644
index 0000000..614c3ef
--- /dev/null
+++ b/src/main/java/com/waterquality/projectmanagement/dto/facility/FacilityVO.java
@@ -0,0 +1,22 @@
+package com.waterquality.projectmanagement.dto.facility;
+
+import com.waterquality.projectmanagement.entity.facility.FacilityStatus;
+import com.waterquality.projectmanagement.entity.facility.FacilityType;
+import lombok.Data;
+
+import java.time.LocalDate;
+
+// FacilityVO.java
+@Data
+public class FacilityVO {
+    private Integer id;
+    private String code;
+    private FacilityType type;
+    private String location;
+    private String area;
+    private FacilityStatus status;
+    private String deptName;
+    private LocalDate installDate;
+    private LocalDate lastMaintainDate;
+
+}
diff --git a/src/main/java/com/waterquality/projectmanagement/entity/facility/Facility.java b/src/main/java/com/waterquality/projectmanagement/entity/facility/Facility.java
index 9fdb850..249c1db 100644
--- a/src/main/java/com/waterquality/projectmanagement/entity/facility/Facility.java
+++ b/src/main/java/com/waterquality/projectmanagement/entity/facility/Facility.java
@@ -1,7 +1,11 @@
 package com.waterquality.projectmanagement.entity.facility;
 
+import com.waterquality.projectmanagement.entity.department.Department;
 import jakarta.persistence.*;
 import lombok.*;
+import org.locationtech.jts.geom.Coordinate;
+
+import java.time.LocalDate;
 
 @Entity
 @Table(name = "facilities")
@@ -22,8 +26,7 @@ public class Facility {
     @Column(name = "facility_type", nullable = false)
     private FacilityType type;
 
-    @Column(columnDefinition = "POINT SRID 4326 NOT NULL")
-    private Point location;
+    private String location;
 
     @Column(nullable = false, length = 100)
     private String area;
@@ -33,7 +36,7 @@ public class Facility {
     private FacilityStatus status = FacilityStatus.NORMAL;
 
     @ManyToOne(fetch = FetchType.LAZY)
-    @JoinColumn(name = "responsible_dept", nullable = false)
+    @JoinColumn(name = "responsible_dept", nullable = true)
     private Department responsibleDept;
 
     @Column(name = "install_date")
@@ -43,20 +46,6 @@ public class Facility {
     private LocalDate lastMaintainDate;
 
     // 空间坐标转换方法
-    public void setCoordinates(Double lng, Double lat) {
-        this.location = GeometryUtils.createPoint(lng, lat);
-    }
 
-    public Coordinate getCoordinate() {
-        return this.location.getCoordinate();
-    }
 }
 
-// 空间工具类
-public class GeometryUtils {
-    private static final GeometryFactory GEOMETRY_FACTORY = new GeometryFactory();
-
-    public static Point createPoint(Double lng, Double lat) {
-        return GEOMETRY_FACTORY.createPoint(new Coordinate(lng, lat));
-    }
-}
\ No newline at end of file
diff --git a/src/main/java/com/waterquality/projectmanagement/repository/FacilityRepository.java b/src/main/java/com/waterquality/projectmanagement/repository/FacilityRepository.java
new file mode 100644
index 0000000..84b62d5
--- /dev/null
+++ b/src/main/java/com/waterquality/projectmanagement/repository/FacilityRepository.java
@@ -0,0 +1,49 @@
+package com.waterquality.projectmanagement.repository;
+
+import com.waterquality.projectmanagement.entity.department.Department;
+import com.waterquality.projectmanagement.entity.facility.Facility;
+import com.waterquality.projectmanagement.entity.facility.FacilityStatus;
+import com.waterquality.projectmanagement.entity.facility.FacilityType;
+import org.locationtech.jts.geom.Polygon;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+
+// FacilityRepository.java
+public interface FacilityRepository extends JpaRepository<Facility, Integer> {
+
+    // 根据编码查询
+    Optional<Facility> findByCode(String code);
+
+    // 空间范围查询（使用HQL）
+    // @Query("SELECT f FROM Facility f WHERE within(f.location, :polygon) = true")
+    // List<Facility> findWithinArea(@Param("polygon") Polygon polygon);
+
+    // 状态统计（使用原生SQL）
+    @Query(value = "SELECT status, COUNT(*) as count FROM facilities GROUP BY status",
+            nativeQuery = true)
+    List<Map<String, Object>> countByStatus();
+
+    // 分页查询
+    Page<Facility> findByResponsibleDept(Department dept, Pageable pageable);
+
+    // 复杂条件查询
+    @Query("SELECT f FROM Facility f WHERE " +
+            "(:type IS NULL OR f.type = :type) AND " +
+            "(:status IS NULL OR f.status = :status) AND " +
+            "(:area IS NULL OR f.area LIKE %:area%)")
+    Page<Facility> search(
+            @Param("type") FacilityType type,
+            @Param("status") FacilityStatus status,
+            @Param("area") String area,
+            Pageable pageable
+    );
+
+    boolean existsByCode(String code);
+}
\ No newline at end of file
diff --git a/src/main/java/com/waterquality/projectmanagement/service/DepartmentService.java b/src/main/java/com/waterquality/projectmanagement/service/DepartmentService.java
index 5d18828..6fc4f19 100644
--- a/src/main/java/com/waterquality/projectmanagement/service/DepartmentService.java
+++ b/src/main/java/com/waterquality/projectmanagement/service/DepartmentService.java
@@ -53,4 +53,8 @@ public class DepartmentService {
         return departmentRepository.findById(id)
                 .orElseThrow(() -> new ResourceNotFoundException("部门不存在"));
     }
+
+    public Optional<Department> getDepartmentById(Integer deptId) {
+        return departmentRepository.findById(deptId);
+    }
 }
\ No newline at end of file
diff --git a/src/main/java/com/waterquality/projectmanagement/service/FacilityService.java b/src/main/java/com/waterquality/projectmanagement/service/FacilityService.java
new file mode 100644
index 0000000..27c83a3
--- /dev/null
+++ b/src/main/java/com/waterquality/projectmanagement/service/FacilityService.java
@@ -0,0 +1,89 @@
+package com.waterquality.projectmanagement.service;
+
+import com.waterquality.projectmanagement.dto.facility.FacilityCreateDTO;
+import com.waterquality.projectmanagement.dto.facility.FacilityVO;
+import com.waterquality.projectmanagement.entity.facility.Facility;
+import com.waterquality.projectmanagement.entity.facility.FacilityStatus;
+import com.waterquality.projectmanagement.entity.facility.FacilityType;
+import com.waterquality.projectmanagement.exception.ResourceNotFoundException;
+import com.waterquality.projectmanagement.repository.FacilityRepository;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+import java.util.Optional;
+import java.util.stream.Collectors;
+
+// FacilityService.java
+@Service
+@RequiredArgsConstructor
+@Slf4j
+public class FacilityService {
+
+    private final FacilityRepository facilityRepository;
+
+    @Transactional
+    public FacilityVO createFacility(FacilityCreateDTO dto) {
+        // 校验编码唯一性
+        if (facilityRepository.existsByCode(dto.getCode())) {
+            throw new ResourceNotFoundException("设施编码已存在");
+        }
+
+        // 构建实体
+        Facility facility = new Facility();
+        facility.setCode(dto.getCode());
+        facility.setType(dto.getType());
+        facility.setArea(dto.getArea());
+        facility.setInstallDate(dto.getInstallDate());
+
+
+        // 保存设施
+        Facility saved = facilityRepository.save(facility);
+        return convertToVO(saved);
+    }
+
+    @Transactional(readOnly = true)
+    public Page<FacilityVO> searchFacilities(FacilityType type,
+                                             FacilityStatus status,
+                                             String area,
+                                             Pageable pageable) {
+        return facilityRepository.search(type, status, area, pageable)
+                .map(this::convertToVO);
+    }
+
+    @Transactional
+    public void updateStatus(Integer facilityId, FacilityStatus status) {
+        Facility facility = getFacilityById(facilityId);
+        if (facility.getStatus() != status) {
+            facility.setStatus(status);
+            facilityRepository.save(facility);
+            log.info("设施状态更新：{} -> {}", facility.getCode(), status);
+        }
+    }
+
+
+    public Facility getFacilityById(Integer id) {
+        return facilityRepository.findById(id)
+                .orElseThrow(() -> new ResourceNotFoundException("设施不存在"));
+    }
+
+    public FacilityVO convertToVO(Facility facility) {
+        FacilityVO facilityVO = new FacilityVO();
+        facilityVO.setId(facility.getId());
+        facilityVO.setCode(facility.getCode());
+        facilityVO.setType(facility.getType());
+
+        // 设置地理位置
+
+        facilityVO.setArea(facility.getArea());
+        facilityVO.setStatus(facility.getStatus());
+        facilityVO.setInstallDate(facility.getInstallDate());
+        facilityVO.setLastMaintainDate(facility.getLastMaintainDate());
+
+        return facilityVO;
+    }
+}
\ No newline at end of file