diff --git a/src/main/java/com/gaotao/modules/handlingunit/controller/PdaLabelController.java b/src/main/java/com/gaotao/modules/handlingunit/controller/PdaLabelController.java
new file mode 100644
index 0000000..02f817c
--- /dev/null
+++ b/src/main/java/com/gaotao/modules/handlingunit/controller/PdaLabelController.java
@@ -0,0 +1,87 @@
+package com.gaotao.modules.handlingunit.controller;
+
+import com.gaotao.common.utils.R;
+import com.gaotao.modules.handlingunit.entity.HandlingUnit;
+import com.gaotao.modules.handlingunit.service.HandlingUnitService;
+import com.gaotao.modules.sys.controller.AbstractController;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.Map;
+
+/**
+ * PDA标签查询控制器
+ * 
+ * <p><b>主要功能：</b></p>
+ * <ul>
+ *   <li>扫描标签查询HandlingUnit信息</li>
+ *   <li>显示物料编码、库位、仓库、批次号、wdr等信息</li>
+ * </ul>
+ * 
+ * @author System
+ * @since 2025-01-23
+ */
+@Slf4j
+@RestController
+@RequestMapping("/pda/label")
+public class PdaLabelController extends AbstractController {
+    
+    @Autowired
+    private HandlingUnitService handlingUnitService;
+    
+    /**
+     * @Author System
+     * @Description 查询标签信息
+     * @Date 2025/01/23
+     * @Param [Map<String, Object>]
+     * @return com.gaotao.common.utils.R
+     **/
+    @PostMapping("query")
+    public R queryLabelInfo(@RequestBody Map<String, Object> params) {
+        try {
+            String site = (String) params.get("site");
+            String labelCode = (String) params.get("labelCode");
+            
+            log.info("=== 开始查询标签信息 ===");
+            log.info("工厂: {}, 标签编码: {}", site, labelCode);
+            
+            // 参数验证
+            if (site == null || site.trim().isEmpty()) {
+                return R.error("工厂编码不能为空");
+            }
+            
+            if (labelCode == null || labelCode.trim().isEmpty()) {
+                return R.error("标签编码不能为空");
+            }
+            
+            // 查询HandlingUnit信息
+            HandlingUnit handlingUnit = handlingUnitService.lambdaQuery()
+                    .eq(HandlingUnit::getSite, site)
+                    .eq(HandlingUnit::getUnitId, labelCode.trim())
+                    .one();
+            
+            if (handlingUnit == null) {
+                log.warn("标签不存在: site={}, labelCode={}", site, labelCode);
+                return R.error("标签不存在");
+            }
+            
+            log.info("查询到标签信息: unitId={}, partNo={}, locationId={}, warehouseId={}, batchNo={}, wdr={}", 
+                    handlingUnit.getUnitId(),
+                    handlingUnit.getPartNo(),
+                    handlingUnit.getLocationId(),
+                    handlingUnit.getWarehouseId(),
+                    handlingUnit.getBatchNo(),
+                    handlingUnit.getWdr());
+            
+            log.info("=== 标签信息查询完成 ===");
+            
+            return R.ok().put("data", handlingUnit);
+            
+        } catch (Exception e) {
+            log.error("=== 查询标签信息失败 === 错误信息: {}", e.getMessage(), e);
+            return R.error("查询失败: " + e.getMessage());
+        }
+    }
+}
+