diff --git a/frontend/src/views/system/model/index.vue b/frontend/src/views/system/model/index.vue
index 9176b012..2a908be9 100644
--- a/frontend/src/views/system/model/index.vue
+++ b/frontend/src/views/system/model/index.vue
@@ -690,7 +690,9 @@ const runConnectionTest = async () => {
       model: activeChatModel.value?.modelName,
       prompt: '请用一句话说明模型配置已连接。'
     });
-    lastTestAt.value = new Date().toLocaleString('zh-CN', { hour12: false });
+    const testedAt = new Date().toLocaleString('zh-CN', { hour12: false });
+    const latencyMs = result.data?.usage?.latencyMs;
+    lastTestAt.value = Number.isFinite(latencyMs) ? `${testedAt} · ${latencyMs}ms` : testedAt;
     if (result.data?.configured) {
       ElMessage.success(`连接成功：${result.data.modelName}`);
     } else {