diff --git a/src/langbot/pkg/platform/sources/aiocqhttp.yaml b/src/langbot/pkg/platform/sources/aiocqhttp.yaml
index b93a25243..18b233750 100644
--- a/src/langbot/pkg/platform/sources/aiocqhttp.yaml
+++ b/src/langbot/pkg/platform/sources/aiocqhttp.yaml
@@ -12,6 +12,7 @@ metadata:
     zh_Hant: OneBot v11 適配器，用於接入 QQ 機器人協定端，請查看文件了解使用方式
   icon: onebot.png
 spec:
+  legacy: true
   categories:
     - protocol
   help_links:
diff --git a/src/langbot/pkg/platform/sources/dingtalk.yaml b/src/langbot/pkg/platform/sources/dingtalk.yaml
index c7c25e673..32412ef2d 100644
--- a/src/langbot/pkg/platform/sources/dingtalk.yaml
+++ b/src/langbot/pkg/platform/sources/dingtalk.yaml
@@ -12,6 +12,7 @@ metadata:
     zh_Hant: 釘釘適配器，請查看文件了解使用方式
   icon: dingtalk.svg
 spec:
+  legacy: true
   categories:
     - china
   help_links:
diff --git a/src/langbot/pkg/platform/sources/discord.yaml b/src/langbot/pkg/platform/sources/discord.yaml
index 28149cbda..c781110bd 100644
--- a/src/langbot/pkg/platform/sources/discord.yaml
+++ b/src/langbot/pkg/platform/sources/discord.yaml
@@ -20,6 +20,7 @@ metadata:
     es_ES: Adaptador de Discord, requiere un entorno de red con acceso al servidor de Discord
   icon: discord.svg
 spec:
+  legacy: true
   categories:
     - popular
     - global
diff --git a/src/langbot/pkg/platform/sources/kook.yaml b/src/langbot/pkg/platform/sources/kook.yaml
index c63d35eed..e485190de 100644
--- a/src/langbot/pkg/platform/sources/kook.yaml
+++ b/src/langbot/pkg/platform/sources/kook.yaml
@@ -12,6 +12,7 @@ metadata:
     zh_Hant: KOOK 適配器（原開黑啦），支援頻道訊息和私聊訊息
   icon: kook.png
 spec:
+  legacy: true
   categories:
     - china
   help_links:
diff --git a/src/langbot/pkg/platform/sources/lark.yaml b/src/langbot/pkg/platform/sources/lark.yaml
index 94509c470..acde1da56 100644
--- a/src/langbot/pkg/platform/sources/lark.yaml
+++ b/src/langbot/pkg/platform/sources/lark.yaml
@@ -14,6 +14,7 @@ metadata:
     ja_JP: Lark アダプター、長期接続およびWebhookモードの両方をサポートしています。使用方法の詳細については、ドキュメントを参照してください。
   icon: lark.svg
 spec:
+  legacy: true
   categories:
     - popular
     - china
diff --git a/src/langbot/pkg/platform/sources/officialaccount.yaml b/src/langbot/pkg/platform/sources/officialaccount.yaml
index d09538028..19b7c8621 100644
--- a/src/langbot/pkg/platform/sources/officialaccount.yaml
+++ b/src/langbot/pkg/platform/sources/officialaccount.yaml
@@ -12,6 +12,7 @@ metadata:
     zh_Hant: 微信公眾號適配器，需要公網地址以接收訊息推送，請查看文件了解使用方式
   icon: officialaccount.png
 spec:
+  legacy: true
   categories:
     - china
   help_links:
diff --git a/src/langbot/pkg/platform/sources/qqofficial.yaml b/src/langbot/pkg/platform/sources/qqofficial.yaml
index d66a770bf..1ded7e218 100644
--- a/src/langbot/pkg/platform/sources/qqofficial.yaml
+++ b/src/langbot/pkg/platform/sources/qqofficial.yaml
@@ -12,6 +12,7 @@ metadata:
     zh_Hant: QQ 官方 API，支援 Webhook 和 WebSocket 兩種連線模式
   icon: qqofficial.svg
 spec:
+  legacy: true
   categories:
     - china
   help_links:
diff --git a/src/langbot/pkg/platform/sources/slack.yaml b/src/langbot/pkg/platform/sources/slack.yaml
index f1a2e740a..2827276a2 100644
--- a/src/langbot/pkg/platform/sources/slack.yaml
+++ b/src/langbot/pkg/platform/sources/slack.yaml
@@ -20,6 +20,7 @@ metadata:
     es_ES: Adaptador de Slack, requiere una dirección pública para recibir notificaciones de mensajes de Slack, consulte la documentación para obtener instrucciones de uso
   icon: slack.png
 spec:
+  legacy: true
   categories:
     - popular
     - global
diff --git a/src/langbot/pkg/platform/sources/telegram.yaml b/src/langbot/pkg/platform/sources/telegram.yaml
index f652ae420..c3f38d7e3 100644
--- a/src/langbot/pkg/platform/sources/telegram.yaml
+++ b/src/langbot/pkg/platform/sources/telegram.yaml
@@ -20,6 +20,7 @@ metadata:
     es_ES: Adaptador de Telegram, consulte la documentación para obtener instrucciones de uso
   icon: telegram.svg
 spec:
+  legacy: true
   categories:
     - popular
     - global
diff --git a/src/langbot/pkg/platform/sources/wecom.yaml b/src/langbot/pkg/platform/sources/wecom.yaml
index 509fa4e0f..64f4c00e4 100644
--- a/src/langbot/pkg/platform/sources/wecom.yaml
+++ b/src/langbot/pkg/platform/sources/wecom.yaml
@@ -12,6 +12,7 @@ metadata:
     zh_Hant: 企業微信內部機器人，請查看文件了解使用方式
   icon: wecom.png
 spec:
+  legacy: true
   categories:
     - popular
     - china
diff --git a/src/langbot/pkg/platform/sources/wecombot.yaml b/src/langbot/pkg/platform/sources/wecombot.yaml
index 7e95402ee..0dc1f2cd0 100644
--- a/src/langbot/pkg/platform/sources/wecombot.yaml
+++ b/src/langbot/pkg/platform/sources/wecombot.yaml
@@ -12,6 +12,7 @@ metadata:
     zh_Hant: 企業微信智慧機器人，支援長連線和 Webhook 兩種接入方式，請查看文件了解使用方式
   icon: wecombot.png
 spec:
+  legacy: true
   categories:
     - china
   help_links:
diff --git a/src/langbot/pkg/platform/sources/wecomcs.yaml b/src/langbot/pkg/platform/sources/wecomcs.yaml
index 521e7bb0e..5f6fb26ee 100644
--- a/src/langbot/pkg/platform/sources/wecomcs.yaml
+++ b/src/langbot/pkg/platform/sources/wecomcs.yaml
@@ -12,6 +12,7 @@ metadata:
     zh_Hant: 企業微信對外客服機器人，需要公網地址以接收訊息推送，請查看文件了解使用方式
   icon: wecom.png
 spec:
+  legacy: true
   categories:
     - china
   help_links:
diff --git a/web/src/app/home/bots/components/bot-form/BotForm.tsx b/web/src/app/home/bots/components/bot-form/BotForm.tsx
index eb7bea89b..cd864bd52 100644
--- a/web/src/app/home/bots/components/bot-form/BotForm.tsx
+++ b/web/src/app/home/bots/components/bot-form/BotForm.tsx
@@ -13,7 +13,7 @@ import { httpClient } from '@/app/infra/http/HttpClient';
 import { systemInfo } from '@/app/infra/http';
 import { Agent, Bot } from '@/app/infra/entities/api';
 import { getAdapterDocUrl } from '@/app/infra/entities/adapter-docs';
-import { ExternalLink } from 'lucide-react';
+import { ExternalLink, ChevronDown, ChevronRight } from 'lucide-react';
 import EventBindingsEditor from './EventBindingsEditor';
 
 import { zodResolver } from '@hookform/resolvers/zod';
@@ -138,11 +138,35 @@ export default function BotForm({
   const currentAdapter = form.watch('adapter');
   const currentAdapterConfig = form.watch('adapter_config');
 
-  // Group adapters by category for the Select dropdown
-  const groupedAdapters = useMemo(
-    () => groupByCategory(adapterNameList),
+  // Group adapters by category for the Select dropdown. Legacy adapters
+  // (those superseded by an EBA implementation) are split out and shown in a
+  // collapsed group at the bottom so they're de-emphasized but still usable.
+  const activeAdapters = useMemo(
+    () => adapterNameList.filter((a) => !a.legacy),
     [adapterNameList],
   );
+  const legacyAdapters = useMemo(
+    () => adapterNameList.filter((a) => a.legacy),
+    [adapterNameList],
+  );
+  const groupedAdapters = useMemo(
+    () => groupByCategory(activeAdapters),
+    [activeAdapters],
+  );
+
+  // Whether the collapsed legacy adapter group is expanded in the Select.
+  const [showLegacyAdapters, setShowLegacyAdapters] = useState(false);
+
+  // Auto-expand the legacy group when the selected adapter is itself legacy,
+  // so editing an existing bot on a legacy adapter still reveals the choice.
+  useEffect(() => {
+    if (
+      currentAdapter &&
+      legacyAdapters.some((a) => a.value === currentAdapter)
+    ) {
+      setShowLegacyAdapters(true);
+    }
+  }, [currentAdapter, legacyAdapters]);
 
   // Notify parent when dirty state changes
   const { isDirty } = form.formState;
@@ -207,6 +231,7 @@ export default function BotForm({
           label: extractI18nObject(item.label),
           value: item.name,
           categories: item.spec.categories,
+          legacy: item.spec.legacy,
         };
       }),
     );
@@ -514,6 +539,62 @@ export default function BotForm({
                               ))}
                             </SelectGroup>
                           ))}
+                          {legacyAdapters.length > 0 && (
+                            <>
+                              <div
+                                role="button"
+                                tabIndex={0}
+                                onClick={(e) => {
+                                  e.preventDefault();
+                                  e.stopPropagation();
+                                  setShowLegacyAdapters((v) => !v);
+                                }}
+                                onKeyDown={(e) => {
+                                  if (e.key === 'Enter' || e.key === ' ') {
+                                    e.preventDefault();
+                                    setShowLegacyAdapters((v) => !v);
+                                  }
+                                }}
+                                className="flex cursor-pointer items-center gap-1 px-2 py-1.5 text-xs font-medium text-muted-foreground hover:text-foreground border-t mt-1 pt-2"
+                              >
+                                {showLegacyAdapters ? (
+                                  <ChevronDown className="h-3.5 w-3.5" />
+                                ) : (
+                                  <ChevronRight className="h-3.5 w-3.5" />
+                                )}
+                                {t('bots.legacyAdapters')}
+                                <span className="ml-1 rounded bg-muted px-1.5 py-0.5 text-[10px]">
+                                  {legacyAdapters.length}
+                                </span>
+                              </div>
+                              {showLegacyAdapters && (
+                                <>
+                                  <p className="px-2 pb-1 text-[11px] leading-snug text-muted-foreground">
+                                    {t('bots.legacyAdaptersHint')}
+                                  </p>
+                                  <SelectGroup>
+                                    {legacyAdapters.map((item) => (
+                                      <SelectItem
+                                        key={`legacy:${item.value}`}
+                                        value={item.value}
+                                      >
+                                        <div className="flex items-center gap-2 opacity-70">
+                                          <img
+                                            src={httpClient.getAdapterIconURL(
+                                              item.value,
+                                            )}
+                                            alt=""
+                                            className="h-5 w-5 rounded grayscale"
+                                          />
+                                          <span>{item.label}</span>
+                                        </div>
+                                      </SelectItem>
+                                    ))}
+                                  </SelectGroup>
+                                </>
+                              )}
+                            </>
+                          )}
                         </SelectContent>
                       </Select>
                       {currentAdapter &&
diff --git a/web/src/app/home/bots/components/bot-form/ChooseEntity.ts b/web/src/app/home/bots/components/bot-form/ChooseEntity.ts
index b7ba86968..c460f06b4 100644
--- a/web/src/app/home/bots/components/bot-form/ChooseEntity.ts
+++ b/web/src/app/home/bots/components/bot-form/ChooseEntity.ts
@@ -2,6 +2,7 @@ export interface IChooseAdapterEntity {
   label: string;
   value: string;
   categories?: string[];
+  legacy?: boolean;
 }
 
 export interface IPipelineEntity {
diff --git a/web/src/app/infra/entities/api/index.ts b/web/src/app/infra/entities/api/index.ts
index 7a4ac4304..a2212b0d7 100644
--- a/web/src/app/infra/entities/api/index.ts
+++ b/web/src/app/infra/entities/api/index.ts
@@ -205,6 +205,7 @@ export interface Adapter {
   icon?: string;
   spec: {
     categories?: string[];
+    legacy?: boolean;
     help_links?: Record<string, string>;
     supported_events?: string[];
     supported_apis?: string[];
diff --git a/web/src/app/wizard/page.tsx b/web/src/app/wizard/page.tsx
index 955e008b4..a6655e403 100644
--- a/web/src/app/wizard/page.tsx
+++ b/web/src/app/wizard/page.tsx
@@ -7,6 +7,8 @@ import {
   ArrowLeft,
   ArrowRight,
   Check,
+  ChevronDown,
+  ChevronRight,
   Sparkles,
   PartyPopper,
   Loader2,
@@ -765,14 +767,24 @@ function StepPlatform({
   onSelect: (name: string) => void;
 }) {
   const { t } = useTranslation();
+  const [showLegacy, setShowLegacy] = useState(false);
+
+  const activeAdapters = useMemo(
+    () => adapters.filter((a) => !a.spec.legacy),
+    [adapters],
+  );
+  const legacyAdapters = useMemo(
+    () => adapters.filter((a) => a.spec.legacy),
+    [adapters],
+  );
 
   const groupedAdapters = useMemo(() => {
-    const withCategories = adapters.map((a) => ({
+    const withCategories = activeAdapters.map((a) => ({
       ...a,
       categories: a.spec.categories,
     }));
     return groupByCategory(withCategories);
-  }, [adapters]);
+  }, [activeAdapters]);
 
   return (
     <div className="space-y-6 max-w-4xl mx-auto">
@@ -848,6 +860,66 @@ function StepPlatform({
           </div>
         </div>
       ))}
+      {legacyAdapters.length > 0 && (
+        <div className="border-t pt-4 space-y-3">
+          <button
+            type="button"
+            className="flex items-center gap-2 text-sm text-muted-foreground hover:text-foreground"
+            onClick={() => setShowLegacy((v) => !v)}
+          >
+            {showLegacy ? (
+              <ChevronDown className="h-4 w-4" />
+            ) : (
+              <ChevronRight className="h-4 w-4" />
+            )}
+            {t('bots.legacyAdapters')}
+            <span className="rounded bg-muted px-1.5 py-0.5 text-xs">
+              {legacyAdapters.length}
+            </span>
+          </button>
+          {showLegacy && (
+            <>
+              <p className="text-xs text-muted-foreground">
+                {t('bots.legacyAdaptersHint')}
+              </p>
+              <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-4 opacity-60">
+                {legacyAdapters.map((adapter) => (
+                  <Card
+                    key={adapter.name}
+                    className={cn(
+                      'cursor-pointer transition-all hover:shadow-md',
+                      selected === adapter.name
+                        ? 'ring-2 ring-primary shadow-md'
+                        : 'hover:border-primary/50',
+                    )}
+                    onClick={() => onSelect(adapter.name)}
+                  >
+                    <CardHeader className="flex flex-row items-center gap-3 pb-2">
+                      <img
+                        src={httpClient.getAdapterIconURL(adapter.name)}
+                        alt=""
+                        className="w-10 h-10 rounded-lg shrink-0 grayscale"
+                      />
+                      <div className="min-w-0">
+                        <CardTitle className="text-base truncate">
+                          {extractI18nObject(adapter.label)}
+                        </CardTitle>
+                      </div>
+                      {selected === adapter.name && (
+                        <div className="ml-auto shrink-0">
+                          <div className="w-5 h-5 rounded-full bg-primary flex items-center justify-center">
+                            <Check className="w-3 h-3 text-primary-foreground" />
+                          </div>
+                        </div>
+                      )}
+                    </CardHeader>
+                  </Card>
+                ))}
+              </div>
+            </>
+          )}
+        </div>
+      )}
     </div>
   );
 }
diff --git a/web/src/i18n/locales/en-US.ts b/web/src/i18n/locales/en-US.ts
index 99dbccf31..2438e5907 100644
--- a/web/src/i18n/locales/en-US.ts
+++ b/web/src/i18n/locales/en-US.ts
@@ -339,6 +339,9 @@ const enUS = {
     deleteConfirmation: 'Are you sure you want to delete this bot?',
     platformAdapter: 'Platform/Adapter Selection',
     selectAdapter: 'Select Adapter',
+    legacyAdapters: 'Legacy adapters',
+    legacyAdaptersHint:
+      'These adapters are superseded by their newer (EBA) versions. They are kept only for existing configurations and are not recommended for new bots.',
     adapterConfig: 'Adapter Configuration',
     viewAdapterDocs: 'View Docs',
     bindPipeline: 'Bind Pipeline',
diff --git a/web/src/i18n/locales/zh-Hans.ts b/web/src/i18n/locales/zh-Hans.ts
index cbd3e8575..0429ba17b 100644
--- a/web/src/i18n/locales/zh-Hans.ts
+++ b/web/src/i18n/locales/zh-Hans.ts
@@ -324,6 +324,9 @@ const zhHans = {
     deleteConfirmation: '你确定要删除这个机器人吗？',
     platformAdapter: '平台/适配器选择',
     selectAdapter: '选择适配器',
+    legacyAdapters: '旧版适配器',
+    legacyAdaptersHint:
+      '这些适配器已被新版（EBA 架构）取代，仅为兼容存量配置保留，不建议新建机器人时使用。',
     adapterConfig: '适配器配置',
     viewAdapterDocs: '查看文档',
     bindPipeline: '绑定流水线',