diff --git a/saiadmin-artd/src/composables/useChannelDeptScope.ts b/saiadmin-artd/src/composables/useChannelDeptScope.ts
index 80092f0..1d77edd 100644
--- a/saiadmin-artd/src/composables/useChannelDeptScope.ts
+++ b/saiadmin-artd/src/composables/useChannelDeptScope.ts
@@ -27,12 +27,35 @@ export interface ChannelDeptScopeContext {
 export const CHANNEL_DEPT_SCOPE_KEY: InjectionKey<ChannelDeptScopeContext> =
   Symbol('channelDeptScope')
 
+/**
+ * 当前应用中处于激活态的超管渠道上下文。
+ * 仅有一个 SuperAdminChannelShell 实例，所以可以在模块作用域内缓存其 ctx，
+ * 供 setInterval / 异步回调 / 事件处理器等"setup 外"路径取用——
+ * 这些路径上 Vue 的 inject() 会失效（getCurrentInstance() 为 null）。
+ */
+let activeChannelCtx: ChannelDeptScopeContext | null = null
+
 export function provideChannelDeptScope(ctx: ChannelDeptScopeContext) {
   provide(CHANNEL_DEPT_SCOPE_KEY, ctx)
+  activeChannelCtx = ctx
+  onScopeDispose(() => {
+    if (activeChannelCtx === ctx) {
+      activeChannelCtx = null
+    }
+  })
 }
 
 export function useInjectedChannelDept(): ChannelDeptScopeContext | null {
-  return inject(CHANNEL_DEPT_SCOPE_KEY, null)
+  // 仅在组件 setup 同步路径下调用 inject() 才可靠；
+  // 否则（异步回调、setInterval、事件处理器等）退化为读取模块级激活上下文，
+  // 避免渠道切换后 getCurrentPool/withChannelDeptParams 等仍按超管自身部门发请求。
+  if (getCurrentInstance()) {
+    const ctx = inject(CHANNEL_DEPT_SCOPE_KEY, null)
+    if (ctx) {
+      return ctx
+    }
+  }
+  return activeChannelCtx
 }
 
 /** 超管全局渠道栏：创建并 provide 渠道上下文 */
diff --git a/saiadmin-artd/src/views/plugin/dice/lottery_pool_config/index/modules/current-pool-dialog.vue b/saiadmin-artd/src/views/plugin/dice/lottery_pool_config/index/modules/current-pool-dialog.vue
index 64ad0d5..7fc6a83 100644
--- a/saiadmin-artd/src/views/plugin/dice/lottery_pool_config/index/modules/current-pool-dialog.vue
+++ b/saiadmin-artd/src/views/plugin/dice/lottery_pool_config/index/modules/current-pool-dialog.vue
@@ -239,6 +239,8 @@
     () => props.modelValue,
     (open) => {
       if (open) {
+        // 切换渠道后再打开弹窗时，先清掉旧池数据，避免视觉残留
+        pool.value = null
         loadPool().then(() => startPolling())
       } else {
         stopPolling()