diff --git a/admin/src/views/tcm/diagnosis/index.vue b/admin/src/views/tcm/diagnosis/index.vue
index 3c6bfb27..49404e06 100644
--- a/admin/src/views/tcm/diagnosis/index.vue
+++ b/admin/src/views/tcm/diagnosis/index.vue
@@ -960,7 +960,7 @@ function scheduleDeferredDateCounts() {
     }
 }
 
-const SILENT_LIST_POLL_MS = 10_000
+const SILENT_LIST_POLL_MS = 20_000
 let silentListPollTimer: ReturnType<typeof setInterval> | null = null
 
 /** 定时静默刷新：不打断表格 loading，标签页隐藏时不请求 */