diff --git a/packages/core/pipeline/src/dt/pipeline.ts b/packages/core/pipeline/src/dt/pipeline.ts
index c9532327..f436d30a 100644
--- a/packages/core/pipeline/src/dt/pipeline.ts
+++ b/packages/core/pipeline/src/dt/pipeline.ts
@@ -46,6 +46,7 @@ export type Stage = Runnable & {
   tasks: Task[];
   concurrency: ConcurrencyStrategy;
   next: NextStrategy;
+  maxTaskCount?: number;
 };
 
 export type Trigger = {
diff --git a/packages/ui/certd-client/src/views/certd/pipeline/certd-form/crud.tsx b/packages/ui/certd-client/src/views/certd/pipeline/certd-form/crud.tsx
index 8f6d5855..7d249398 100644
--- a/packages/ui/certd-client/src/views/certd/pipeline/certd-form/crud.tsx
+++ b/packages/ui/certd-client/src/views/certd/pipeline/certd-form/crud.tsx
@@ -83,7 +83,8 @@ export default function (certPluginGroup: PluginGroup, formWrapperRef: any): Cre
               vModel: "modelValue",
               placeholder: "0 0 4 * * *"
             },
-            helper: "点击上面的按钮，选择每天几点几分定时执行, 例如：0 0 4 * * *，每天凌晨4点0分0秒触发\n建议设置为每天触发一次，证书未到期之前任务会跳过，不会重复执行",
+            helper:
+              "点击上面的按钮，选择每天几点几分定时执行, 例如：0 0 4 * * *，每天凌晨4点0分0秒触发\n建议设置为每天触发一次，证书未到期之前任务会跳过，不会重复执行",
             order: 100
           }
         },
diff --git a/packages/ui/certd-client/src/views/certd/pipeline/crud.tsx b/packages/ui/certd-client/src/views/certd/pipeline/crud.tsx
index eaf59228..b1563744 100644
--- a/packages/ui/certd-client/src/views/certd/pipeline/crud.tsx
+++ b/packages/ui/certd-client/src/views/certd/pipeline/crud.tsx
@@ -113,6 +113,7 @@ export default function ({ crudExpose, context: { certdFormRef } }: CreateCrudOp
         stages: [
           {
             title: "证书申请阶段",
+            maxTaskCount: 1,
             tasks: [
               {
                 title: "证书申请任务",
diff --git a/packages/ui/certd-client/src/views/certd/pipeline/pipeline/index.vue b/packages/ui/certd-client/src/views/certd/pipeline/pipeline/index.vue
index 15c85b91..f9dd3f4b 100644
--- a/packages/ui/certd-client/src/views/certd/pipeline/pipeline/index.vue
+++ b/packages/ui/certd-client/src/views/certd/pipeline/pipeline/index.vue
@@ -123,7 +123,7 @@
                       </div>
                     </template>
                     <template #footer>
-                      <div v-if="editMode" class="task-container is-add">
+                      <div v-if="editMode && !(stage.maxTaskCount > 0 && stage.tasks.length >= stage.maxTaskCount)" class="task-container is-add">
                         <div class="line line-left">
                           <div class="flow-line"></div>
                         </div>