diff --git a/src/utils/taskPolling.js b/src/utils/taskPolling.js
index 5948a97..a7205d2 100644
--- a/src/utils/taskPolling.js
+++ b/src/utils/taskPolling.js
@@ -155,7 +155,17 @@ export async function generate(data, generateData) {
           clearInterval(pollInterval)
           activePollIntervals.delete(pollInterval)
           useDisplay.isSubGerenate = false
-          websocketError(4403, taskData.vendor_error || '生成失败')
+          // 优先取 error 对象内的 message/msg，其次 vendor_error
+          let errorMsg = taskData.vendor_error || '生成失败'
+          const err = taskData.error
+          if (err) {
+            if (typeof err === 'string') {
+              errorMsg = err
+            } else {
+              errorMsg = err.message || err.msg || errorMsg
+            }
+          }
+          websocketError(4403, errorMsg)
         }
         // queued / processing 状态继续轮询
       } catch (error) {