diff --git a/docs/content/docs/progress/pending-test.mdx b/docs/content/docs/progress/pending-test.mdx
index da44587b5..795d303a8 100644
--- a/docs/content/docs/progress/pending-test.mdx
+++ b/docs/content/docs/progress/pending-test.mdx
@@ -48,6 +48,11 @@ description: 当前项目已实现功能的手工验证清单与未确认边界
 - [ ] 复验画布、创作、短剧真实路由中的模型切换、保存后重开、默认档位与比例组合、明暗主题和键盘交互；管理员真实保存由用户确认后执行。
 - [ ] 用真实模型确认新增尺寸是否受上游支持、实际输出与计费档位是否一致；本次未修改已保存模型配置或执行收费生成。
 
+## Issue #428 插件协议分类
+
+- 分类筛选同时限制展示分区，避免音视频协议在音频筛选结果中重复展示；全部分类仍展示各自支持的能力分区。
+- [ ] 人工复验 AutoDL 在音频、视频和全部分类中的展示，以及搜索、状态筛选和详情入口。
+
 ## 画布多图分组与展开动画
 
 - 新生成的多图组默认收起；复制图片或替换节点生成多图时，结果也保留分组归属，可展开、收起和设置主图。
diff --git a/web/src/pages/plugins/index.tsx b/web/src/pages/plugins/index.tsx
index 1e3deb591..428cb7c96 100644
--- a/web/src/pages/plugins/index.tsx
+++ b/web/src/pages/plugins/index.tsx
@@ -159,8 +159,8 @@ export default function PluginsPage() {
         () => [
             ...protocolSectionMeta.map((section) => ({ ...section, plugins: filteredPlugins.filter((plugin) => pluginMatchesCategory(plugin.manifest, section.key)) })),
             { key: "other", label: "应用插件", description: "画布、素材与工作流扩展", icon: PlugZap, plugins: filteredPlugins.filter((plugin) => pluginMatchesCategory(plugin.manifest, "other")) },
-        ],
-        [filteredPlugins],
+        ].filter((section) => categoryFilter === "all" || section.key === categoryFilter),
+        [categoryFilter, filteredPlugins],
     );
 
     const selectCategory = (key: string) => {
diff --git a/web/test/plugin-category-sections.test.ts b/web/test/plugin-category-sections.test.ts
new file mode 100644
index 000000000..8c02419e5
--- /dev/null
+++ b/web/test/plugin-category-sections.test.ts
@@ -0,0 +1,12 @@
+import { readFileSync } from "node:fs";
+import { describe, expect, test } from "bun:test";
+
+const source = readFileSync(new URL("../src/pages/plugins/index.tsx", import.meta.url), "utf8");
+
+describe("plugin category sections (#428)", () => {
+    test("limits rendered sections to the selected category, not just matching plugins", () => {
+        const sections = source.slice(source.indexOf("const pluginSections ="), source.indexOf("const selectCategory ="));
+        expect(sections).toContain('categoryFilter === "all" || section.key === categoryFilter');
+        expect(sections).toContain("[categoryFilter, filteredPlugins]");
+    });
+});