diff --git a/frontend/src/components/TaskEditorModal.tsx b/frontend/src/components/TaskEditorModal.tsx
index 9d67ed4..3b793f3 100644
--- a/frontend/src/components/TaskEditorModal.tsx
+++ b/frontend/src/components/TaskEditorModal.tsx
@@ -1,5 +1,10 @@
 import { zodResolver } from '@hookform/resolvers/zod'
-import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query'
+import {
+  keepPreviousData,
+  useMutation,
+  useQuery,
+  useQueryClient,
+} from '@tanstack/react-query'
 import {
   Button,
   Checkbox,
@@ -225,6 +230,8 @@ export function TaskEditorModal({
       actionType === 'script' &&
       isPythonScript &&
       Boolean(debouncedWorkingDir.trim()),
+    // 探测期间保留上一次最终结果，不显示“正在检测”这种中间状态。
+    placeholderData: keepPreviousData,
     retry: false,
     staleTime: 15_000,
   })
@@ -246,7 +253,9 @@ export function TaskEditorModal({
     onError: (error) => toast.error(error.message),
   })
   const linkedVenv =
-    isPythonScript && venvProbe.data?.status === 'linked'
+    isPythonScript &&
+    !venvProbe.isPlaceholderData &&
+    venvProbe.data?.status === 'linked'
       ? venvProbe.data
       : null
   const previewVirtualEnv = isPythonScript
@@ -289,7 +298,7 @@ export function TaskEditorModal({
 
   // 探测到虚拟环境就自动填进「虚拟环境目录」，但用户自己改过就保留用户的值。
   useEffect(() => {
-    if (!open || !isPythonScript) {
+    if (!open || !isPythonScript || venvProbe.isPlaceholderData) {
       return
     }
     const probe = venvProbe.data
@@ -318,7 +327,7 @@ export function TaskEditorModal({
       shouldDirty: true,
       shouldValidate: true,
     })
-  }, [debouncedVenv, debouncedWorkingDir, getValues, isPythonScript, open, scriptPreview.working_dir, setValue, venvProbe.data])
+  }, [debouncedVenv, debouncedWorkingDir, getValues, isPythonScript, open, scriptPreview.working_dir, setValue, venvProbe.data, venvProbe.isPlaceholderData])
 
   // 打开后把焦点给第一个可编辑字段：新建时是任务标识，编辑时 ID 已锁定，跳名称。
   // 原生 dialog 默认聚焦关闭按钮，不符合编辑表单的节奏。
@@ -626,7 +635,6 @@ export function TaskEditorModal({
                 <VenvDetectorBar
                   workingDir={scriptPreview.working_dir}
                   probe={venvProbe.data}
-                  pending={venvProbe.isPending}
                   failed={venvProbe.isError}
                   creating={createVenvMutation.isPending}
                   onCreate={() =>
@@ -1026,7 +1034,6 @@ function formatScriptCommandPreview(
 interface VenvDetectorBarProps {
   workingDir: string
   probe: VenvProbeResponse | undefined
-  pending: boolean
   failed: boolean
   creating: boolean
   onCreate: () => void
@@ -1035,7 +1042,6 @@ interface VenvDetectorBarProps {
 function VenvDetectorBar({
   workingDir,
   probe,
-  pending,
   failed,
   creating,
   onCreate,
@@ -1048,20 +1054,16 @@ function VenvDetectorBar({
     )
   }
 
-  if (pending) {
-    return (
-      <div className="env-detector-bar" role="status">
-        <span className="env-status-badge pending">⏳ 正在探测解释器...</span>
-      </div>
-    )
-  }
-
-  if (failed || !probe) {
-    return (
-      <div className="env-detector-bar" role="status">
-        <span className="env-status-badge warn">● 环境探测失败，可稍后重试</span>
-      </div>
-    )
+  if (!probe) {
+    if (failed) {
+      return (
+        <div className="env-detector-bar" role="status">
+          <span className="env-status-badge warn">● 环境探测失败，可稍后重试</span>
+        </div>
+      )
+    }
+    // 还没有最终结果：保持空状态，不显示跳动的“正在检测”。
+    return <div className="env-detector-bar" role="status" />
   }
 
   if (probe.status === 'linked') {