diff --git a/viewsh-module-ops/viewsh-module-ops-server/src/main/java/com/viewsh/module/ops/controller/admin/OrderCenterController.java b/viewsh-module-ops/viewsh-module-ops-server/src/main/java/com/viewsh/module/ops/controller/admin/OrderCenterController.java
index 53433f1..42b3e9b 100644
--- a/viewsh-module-ops/viewsh-module-ops-server/src/main/java/com/viewsh/module/ops/controller/admin/OrderCenterController.java
+++ b/viewsh-module-ops/viewsh-module-ops-server/src/main/java/com/viewsh/module/ops/controller/admin/OrderCenterController.java
@@ -1,7 +1,9 @@
 package com.viewsh.module.ops.controller.admin;
 
+import cn.hutool.core.util.StrUtil;
 import com.viewsh.framework.common.pojo.CommonResult;
 import com.viewsh.framework.common.pojo.PageResult;
+import com.viewsh.module.infra.api.file.FileApi;
 import com.viewsh.module.ops.api.clean.QuickStatsRespDTO;
 import com.viewsh.module.ops.controller.admin.workorder.vo.statistics.DashboardStatsRespVO;
 import com.viewsh.module.ops.controller.admin.workorder.vo.statistics.WorkspaceStatsRespVO;
@@ -23,7 +25,9 @@ import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
 
 import java.time.LocalDate;
+import java.util.List;
 import java.util.Map;
+import java.util.stream.Collectors;
 
 import static com.viewsh.framework.common.pojo.CommonResult.success;
 
@@ -43,6 +47,8 @@ public class OrderCenterController {
 
     @Resource
     private OrderQueryService orderQueryService;
+    @Resource
+    private FileApi fileApi;
 
     @Autowired(required = false)
     private CleanDashboardService cleanDashboardService;
@@ -64,6 +70,8 @@ public class OrderCenterController {
     @PreAuthorize("@ss.hasPermission('ops:order-center:query')")
     public CommonResult<OrderDetailVO> getDetail(@PathVariable("id") Long id) {
         OrderDetailVO detail = orderQueryService.getDetail(id);
+        // 私有桶：对 extInfo 中的图片 URL 生成预签名访问地址
+        presignExtInfoImageUrls(detail);
         return success(detail);
     }
 
@@ -127,4 +135,43 @@ public class OrderCenterController {
         return success(opsStatisticsService.getWorkspaceStats());
     }
 
+    /**
+     * 对 extInfo 中的图片 URL 生成预签名访问地址
+     */
+    private void presignExtInfoImageUrls(OrderDetailVO detail) {
+        if (detail == null || detail.getExtInfo() == null) {
+            return;
+        }
+        Map<String, Object> extInfo = detail.getExtInfo();
+        // imageUrl：单个告警截图
+        Object imageUrl = extInfo.get("imageUrl");
+        if (imageUrl instanceof String url && StrUtil.isNotEmpty(url)) {
+            try {
+                extInfo.put("imageUrl", fileApi.presignGetUrl(url, null).getCheckedData());
+            } catch (Exception e) {
+                log.warn("[presignExtInfoImageUrls] imageUrl 签名失败: {}", url, e);
+            }
+        }
+        // resultImgUrls：处理结果图片，JSON 数组字符串 如 ["url1","url2"]
+        Object resultImgUrls = extInfo.get("resultImgUrls");
+        if (resultImgUrls instanceof String urlsJson && StrUtil.isNotEmpty(urlsJson)) {
+            try {
+                List<String> urls = cn.hutool.json.JSONUtil.toList(urlsJson, String.class);
+                List<String> signedUrls = urls.stream()
+                        .map(u -> {
+                            try {
+                                return fileApi.presignGetUrl(u, null).getCheckedData();
+                            } catch (Exception e) {
+                                log.warn("[presignExtInfoImageUrls] resultImgUrl 签名失败: {}", u, e);
+                                return u;
+                            }
+                        })
+                        .collect(Collectors.toList());
+                extInfo.put("resultImgUrls", cn.hutool.json.JSONUtil.toJsonStr(signedUrls));
+            } catch (Exception e) {
+                log.warn("[presignExtInfoImageUrls] 解析 resultImgUrls 失败: {}", resultImgUrls, e);
+            }
+        }
+    }
+
 }