diff --git a/bonus-modules/bonus-material-mall/src/main/java/com/bonus/material/devchange/mapper/MaDevInfoMapper.java b/bonus-modules/bonus-material-mall/src/main/java/com/bonus/material/devchange/mapper/MaDevInfoMapper.java
index 000a43d..f24179d 100644
--- a/bonus-modules/bonus-material-mall/src/main/java/com/bonus/material/devchange/mapper/MaDevInfoMapper.java
+++ b/bonus-modules/bonus-material-mall/src/main/java/com/bonus/material/devchange/mapper/MaDevInfoMapper.java
@@ -46,5 +46,7 @@ public interface MaDevInfoMapper {
 
     List<MaDevInfo> getDeviceByMaIds(String[] maIdArray);
 
+    //查询装备总数
+    Integer selectTotalDeviceCount();
 }
 
diff --git a/bonus-modules/bonus-material-mall/src/main/java/com/bonus/material/devchange/service/MaDevInfoServiceImpl.java b/bonus-modules/bonus-material-mall/src/main/java/com/bonus/material/devchange/service/MaDevInfoServiceImpl.java
index 933645c..945cd44 100644
--- a/bonus-modules/bonus-material-mall/src/main/java/com/bonus/material/devchange/service/MaDevInfoServiceImpl.java
+++ b/bonus-modules/bonus-material-mall/src/main/java/com/bonus/material/devchange/service/MaDevInfoServiceImpl.java
@@ -121,11 +121,17 @@ public class MaDevInfoServiceImpl implements MaDevInfoService {
     }
 
     /**
-     * 将扁平列表构建成树，并添加一个总的根节点
+     * 将扁平列表构建成树，并添加一个总的根节点，根节点名称包含设备总数
      */
     public DeviceTreeBean buildTree(List<DeviceTreeBean> list) {
+        // 统计设备总数（列表的size即为总数量）
+        //int totalCount = list == null ? 0 : list.size();
+
+        Integer totalCount=mapper.selectTotalDeviceCount();
+
         if (list == null || list.isEmpty()) {
-            return new DeviceTreeBean("0", "-1", "设备目录");
+            // 空列表时显示总数为0
+            return new DeviceTreeBean("0", "-1", "装备目录（总数：0）");
         }
 
         // 1. 创建 id -> node 映射
@@ -152,19 +158,21 @@ public class MaDevInfoServiceImpl implements MaDevInfoService {
                 // 如果父节点不存在，挂到虚拟根
                 parentNode = virtualRoot;
             }
-            if (StringUtils.isEmpty(parentNode.getChildren())) {
+            if (parentNode.getChildren() == null) {
                 parentNode.setChildren(new ArrayList<>());
             }
             parentNode.getChildren().add(node);
         }
-        // 5. 创建最终的总根节点
-        DeviceTreeBean root = new DeviceTreeBean("0", "-1", "设备目录");
+
+        // 5. 创建最终的总根节点，名称包含设备总数
+        DeviceTreeBean root = new DeviceTreeBean("0", "-1", String.format("装备目录（总数：%d）", totalCount));
         if (virtualRoot.getChildren() != null && !virtualRoot.getChildren().isEmpty()) {
-            if (StringUtils.isEmpty(root.getChildren())) {
+            if (root.getChildren() == null) {
                 root.setChildren(new ArrayList<>());
             }
             root.getChildren().addAll(virtualRoot.getChildren());
         }
+
         return root;
     }
 
diff --git a/bonus-modules/bonus-material-mall/src/main/resources/mapper/material/devchange/MaDevInfoMapper.xml b/bonus-modules/bonus-material-mall/src/main/resources/mapper/material/devchange/MaDevInfoMapper.xml
index f340c92..9edd458 100644
--- a/bonus-modules/bonus-material-mall/src/main/resources/mapper/material/devchange/MaDevInfoMapper.xml
+++ b/bonus-modules/bonus-material-mall/src/main/resources/mapper/material/devchange/MaDevInfoMapper.xml
@@ -241,6 +241,9 @@
                mt.parent_id as pId
         FROM ma_type mt
         WHERE mt.level != '7'
+        <if test="name != null and name != ''">
+            AND mt.type_name LIKE CONCAT('%', #{name}, '%')
+        </if>
     </select>
 
     <select id="deviceCount" resultType="com.bonus.material.devchange.domain.DeviceCountBean">
@@ -502,4 +505,12 @@
         </foreach>
     </select>
 
+
+    <select id="selectTotalDeviceCount" resultType="java.lang.Integer">
+        SELECT COUNT( t.type_id)
+        FROM ma_dev_info d
+            JOIN ma_type t ON d.type_id = t.type_id
+
+    </select>
+
 </mapper>