diff --git a/business-css/src/main/java/com/yfd/business/css/controller/DeviceController.java b/business-css/src/main/java/com/yfd/business/css/controller/DeviceController.java
index 1601649..44ee2d6 100644
--- a/business-css/src/main/java/com/yfd/business/css/controller/DeviceController.java
+++ b/business-css/src/main/java/com/yfd/business/css/controller/DeviceController.java
@@ -117,7 +117,7 @@ public class DeviceController {
     
 
     /**
-     * 6. 设备分页查询（类型 可选 + 名称 可选）
+     * 6. 设备模板库分页查询（类型 可选 + 名称 可选）
      * 输入参数：查询参数 type（可选），name（可选），pageNum（页码，默认1），pageSize（每页条数，默认10）
      * 输出参数：设备分页列表（按创建时间倒序）
      * @param type 设备类型（可选）
@@ -132,6 +132,9 @@ public class DeviceController {
                                @RequestParam(defaultValue = "1") long pageNum,
                                @RequestParam(defaultValue = "20") long pageSize) {
         QueryWrapper<Device> qw = new QueryWrapper<>();
+        // 模板库设备 project_id 为 -1
+        qw.eq("project_id", "-1");
+
         if (type != null && !type.isEmpty()) {
             qw.eq("type", type);
         }
diff --git a/business-css/src/main/java/com/yfd/business/css/controller/MaterialController.java b/business-css/src/main/java/com/yfd/business/css/controller/MaterialController.java
index 2b76f36..6b70f45 100644
--- a/business-css/src/main/java/com/yfd/business/css/controller/MaterialController.java
+++ b/business-css/src/main/java/com/yfd/business/css/controller/MaterialController.java
@@ -2,6 +2,7 @@ package com.yfd.business.css.controller;
 
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.yfd.business.css.domain.Device;
 import com.yfd.business.css.domain.Material;
 import com.yfd.business.css.service.MaterialService;
 import com.yfd.platform.system.service.IUserService;
@@ -37,6 +38,12 @@ public class MaterialController {
         return materialService.saveMaterial(material);
     }
 
+    @PostMapping("/saveOrUpdate")
+    public boolean saveOrUpdate(@RequestBody Material material) {
+        material.setModifier(currentUsername());
+        return materialService.saveOrUpdateByBusiness(material);
+    }
+
     /**
      * 2. 编辑物料
      * 输入参数：请求体中的物料对象（需包含主键）
@@ -102,10 +109,12 @@ public class MaterialController {
     public Page<Material> search(@RequestParam(required = false) String name,
                                  @RequestParam(defaultValue = "1") long pageNum,
                                  @RequestParam(defaultValue = "20") long pageSize) {
-        QueryWrapper<Material> qw = new QueryWrapper<Material>().orderByDesc("created_at");
+        QueryWrapper<Material> qw = new QueryWrapper<>();
+        qw.eq("project_id", "-1");
         if (name != null && !name.isEmpty()) {
             qw.like("name", name);
         }
+        qw.orderByDesc("created_at");
         Page<Material> page = new Page<>(pageNum, pageSize, true);
         return materialService.page(page, qw);
     }
diff --git a/business-css/src/main/java/com/yfd/business/css/service/MaterialService.java b/business-css/src/main/java/com/yfd/business/css/service/MaterialService.java
index c1137b1..e9b717d 100644
--- a/business-css/src/main/java/com/yfd/business/css/service/MaterialService.java
+++ b/business-css/src/main/java/com/yfd/business/css/service/MaterialService.java
@@ -1,6 +1,7 @@
 package com.yfd.business.css.service;
 
 import com.baomidou.mybatisplus.extension.service.IService;
+import com.yfd.business.css.domain.Device;
 import com.yfd.business.css.domain.Material;
 import org.springframework.web.multipart.MultipartFile;
 
@@ -14,4 +15,6 @@ public interface MaterialService extends IService<Material> {
      * 新增物料
      */
     boolean saveMaterial(Material material);
+
+    boolean saveOrUpdateByBusiness(Material material);
 }
diff --git a/business-css/src/main/java/com/yfd/business/css/service/impl/MaterialServiceImpl.java b/business-css/src/main/java/com/yfd/business/css/service/impl/MaterialServiceImpl.java
index ae5a332..141dc0c 100644
--- a/business-css/src/main/java/com/yfd/business/css/service/impl/MaterialServiceImpl.java
+++ b/business-css/src/main/java/com/yfd/business/css/service/impl/MaterialServiceImpl.java
@@ -70,6 +70,28 @@ public class MaterialServiceImpl
         return this.save(material);
     }
 
+    @Override
+    public boolean saveOrUpdateByBusiness(Material material) {
+
+        String materialId = material.getMaterialId();
+
+        // 情况 1：未传 materialId → 直接新增
+        if (StrUtil.isBlank(materialId)) {
+            return this.save(material);
+        }
+
+        // 情况 2：传了 materialId，判断是否存在
+        Material dbMaterial = this.getById(materialId);
+
+        if (dbMaterial == null) {
+            // 数据库不存在 → 新增（使用传入的 materialId）
+            return this.save(material);
+        } else {
+            // 数据库存在 → 更新
+            return this.updateById(material);
+        }
+    }
+
     private boolean importExcel(Workbook workbook) {
         try (Workbook wb = workbook) {
             Sheet sheet = wb.getSheetAt(0);