diff --git a/frontend/src/app/workspace/chats/[thread_id]/page.tsx b/frontend/src/app/workspace/chats/[thread_id]/page.tsx
index dcd226e8..b8e1f3c6 100644
--- a/frontend/src/app/workspace/chats/[thread_id]/page.tsx
+++ b/frontend/src/app/workspace/chats/[thread_id]/page.tsx
@@ -27,7 +27,6 @@ import { IframeTestPanel } from "@/components/workspace/iframe-test-panel";
 import { InputBox } from "@/components/workspace/input-box";
 import { MessageList } from "@/components/workspace/messages";
 import { ThreadContext } from "@/components/workspace/messages/context";
-import { ThreadMemoryTestPanel } from "@/components/workspace/thread-memory-test-panel";
 import { ThreadTitle } from "@/components/workspace/thread-title";
 import { Tooltip } from "@/components/workspace/tooltip";
 import { useSpecificChatMode } from "@/components/workspace/use-chat-mode";
@@ -706,7 +705,6 @@ export default function ChatPage() {
 
         {/* MARK: 开发测试：iframe 通信功能测试面板 */}
         {/* {process.env.NODE_ENV !== "production" && <IframeTestPanel />} */}
-        {/* <ThreadMemoryTestPanel threadId={threadId} /> */}
       </div>
     </ThreadContext.Provider>
   );
diff --git a/frontend/src/components/workspace/input-box.tsx b/frontend/src/components/workspace/input-box.tsx
index 2c93afe7..32f2347c 100644
--- a/frontend/src/components/workspace/input-box.tsx
+++ b/frontend/src/components/workspace/input-box.tsx
@@ -4,6 +4,7 @@ import type { ChatStatus } from "ai";
 import { Tour } from "antd";
 import {
   CheckIcon,
+  BrainIcon,
   GraduationCapIcon,
   LightbulbIcon,
   Loader2Icon,
@@ -97,6 +98,7 @@ import { Suggestion, Suggestions } from "../ai-elements/suggestion";
 import { ScrollArea } from "../ui/scroll-area";
 
 import { ModeHoverGuide } from "./mode-hover-guide";
+import { ThreadMemoryPanel } from "./thread-memory-panel";
 import { Tooltip } from "./tooltip";
 
 
@@ -280,6 +282,7 @@ export function InputBox({
     null,
   );
   const [isFocused, setIsFocused] = useState(false);
+  const [memoryPanelOpen, setMemoryPanelOpen] = useState(false);
   const [references, setReferences] = useState<PromptInputReference[]>([]);
   const [mentionQuery, setMentionQuery] = useState("");
   const [mentionOpen, setMentionOpen] = useState(false);
@@ -293,7 +296,8 @@ export function InputBox({
   const { data: referenceFilesData } = useReferenceFiles(threadIdFromProps);
 
   // Welcome 态下禁用收缩，始终保持展开
-  const effectiveIsFocused = (showWelcomeStyle ?? false) || isFocused;
+  const effectiveIsFocused =
+    (showWelcomeStyle ?? false) || isFocused || memoryPanelOpen;
   const shouldShowSuggestionList =
     showWelcomeStyle && searchParams.get("mode") !== "skill";
 
@@ -965,6 +969,7 @@ export function InputBox({
                 />
               </div>
             )}
+            
             {/* {!showWelcomeStyle && (
               <div className="shrink-0 h-full">
                 <ExitChattingButton
@@ -976,6 +981,22 @@ export function InputBox({
             <div ref={attachmentsButtonTourRef} className="shrink-0 h-full">
               <AddAttachmentsButton />
             </div>
+            {/* 记忆按钮 */}
+            <div className="shrink-0 h-full">
+              <DropdownMenu open={memoryPanelOpen} onOpenChange={setMemoryPanelOpen}>
+                <DropdownMenuTrigger asChild>
+                    <WorkspaceToolButton
+                      className="h-full"
+                      disabled={!threadIdFromProps || threadIdFromProps === "new"}
+                    >
+                      <BrainIcon className="size-4" />
+                    </WorkspaceToolButton>
+                  </DropdownMenuTrigger>
+                <DropdownMenuContent align="start" className="w-auto p-0">
+                  <ThreadMemoryPanel threadId={threadIdFromProps} />
+                </DropdownMenuContent>
+              </DropdownMenu>
+            </div>
             <div className="min-w-0 grow basis-0 h-full">
               <IframeSkillDialogButton
                 skillButtonRef={skillButtonTourRef}
diff --git a/frontend/src/components/workspace/thread-memory-panel.tsx b/frontend/src/components/workspace/thread-memory-panel.tsx
new file mode 100644
index 00000000..d562838f
--- /dev/null
+++ b/frontend/src/components/workspace/thread-memory-panel.tsx
@@ -0,0 +1,138 @@
+"use client";
+
+import { useState } from "react";
+import { toast } from "sonner";
+
+import { Button } from "@/components/ui/button";
+import { Textarea } from "@/components/ui/textarea";
+import { getBackendBaseURL } from "@/core/config";
+import { useI18n } from "@/core/i18n/hooks";
+
+type ThreadMemoryPanelProps = {
+  threadId?: string;
+};
+
+export function ThreadMemoryPanel({ threadId }: ThreadMemoryPanelProps) {
+  const [memorySummary, setMemorySummary] = useState("");
+  const [memoryVersion, setMemoryVersion] = useState<number | null>(null);
+  const [loadingSummary, setLoadingSummary] = useState(false);
+  const [savingSummary, setSavingSummary] = useState(false);
+  const [deletingMemory, setDeletingMemory] = useState(false);
+  const { t } = useI18n();
+  if (!threadId || threadId === "new") return null;
+
+  const handleLoadMemorySummary = async () => {
+    setLoadingSummary(true);
+    try {
+      const res = await fetch(
+        `${getBackendBaseURL()}/api/threads/${encodeURIComponent(threadId)}/memory-summary`,
+      );
+      if (!res.ok) throw new Error(`HTTP ${res.status}`);
+      const data = (await res.json()) as { summary: string; memoryVersion: number };
+      setMemorySummary(data.summary ?? "");
+      setMemoryVersion(data.memoryVersion ?? 0);
+      toast.success(t.threadMemoryPanel.toastLoadSuccess);
+    } catch {
+      toast.error(t.threadMemoryPanel.toastLoadFailed);
+    } finally {
+      setLoadingSummary(false);
+    }
+  };
+
+  const handleSaveMemorySummary = async () => {
+    if (memoryVersion == null) return;
+    setSavingSummary(true);
+    try {
+      const res = await fetch(
+        `${getBackendBaseURL()}/api/threads/${encodeURIComponent(threadId)}/memory-summary`,
+        {
+          method: "POST",
+          headers: { "Content-Type": "application/json" },
+          body: JSON.stringify({ summary: memorySummary, memoryVersion }),
+        },
+      );
+      if (res.status === 409) {
+        toast.error(t.threadMemoryPanel.toastConflict);
+        return;
+      }
+      if (!res.ok) throw new Error(`HTTP ${res.status}`);
+      const data = (await res.json()) as { memoryVersion?: number };
+      if (typeof data.memoryVersion === "number") setMemoryVersion(data.memoryVersion);
+      toast.success(t.threadMemoryPanel.toastSaveSuccess);
+    } catch {
+      toast.error(t.threadMemoryPanel.toastSaveFailed);
+    } finally {
+      setSavingSummary(false);
+    }
+  };
+
+  const handleDeleteMemory = async () => {
+    setDeletingMemory(true);
+    try {
+      const res = await fetch(
+        `${getBackendBaseURL()}/api/threads/${encodeURIComponent(threadId)}/memory`,
+        { method: "DELETE" },
+      );
+      if (!res.ok) throw new Error(`HTTP ${res.status}`);
+      setMemorySummary("");
+      setMemoryVersion(0);
+      toast.success(t.threadMemoryPanel.toastDeleteSuccess);
+    } catch {
+      toast.error(t.threadMemoryPanel.toastDeleteFailed);
+    } finally {
+      setDeletingMemory(false);
+    }
+  };
+
+  return (
+    <div className="w-[380px] space-y-2 rounded-lg border border-ws-divider bg-ws-surface-elevated p-3 shadow-lg">
+      <div className="text-sm font-semibold">
+        <span className="hidden sm:inline">{t.threadMemoryPanel.title}</span>
+      </div>
+      <div className="space-y-2">
+        <div className="flex items-center gap-2">
+          <Button
+            size="sm"
+            variant="outline"
+            onClick={() => {
+              void handleLoadMemorySummary();
+            }}
+            disabled={loadingSummary}
+          >
+            {loadingSummary ? t.threadMemoryPanel.loading : t.threadMemoryPanel.load}
+          </Button>
+          <Button
+            size="sm"
+            onClick={() => {
+              void handleSaveMemorySummary();
+            }}
+            disabled={savingSummary || memoryVersion == null}
+          >
+            {savingSummary ? t.threadMemoryPanel.saving : t.threadMemoryPanel.save}
+          </Button>
+          <Button
+            size="sm"
+            variant="destructive"
+            onClick={() => {
+              void handleDeleteMemory();
+            }}
+            disabled={deletingMemory}
+          >
+            {deletingMemory ? t.threadMemoryPanel.removing : t.threadMemoryPanel.remove}
+          </Button>
+        </div>
+        <div className="text-xs text-ws-text-subtle-strong">
+          {t.threadMemoryPanel.threadId}: {threadId.slice(0, 8)}... |{" "}
+          {t.threadMemoryPanel.version}:{" "}
+          {memoryVersion == null ? t.threadMemoryPanel.unavailableVersion : memoryVersion}
+        </div>
+        <Textarea
+          value={memorySummary}
+          onChange={(e) => setMemorySummary(e.target.value)}
+          placeholder={t.threadMemoryPanel.summaryPlaceholder}
+          className="min-h-32 bg-white/80"
+        />
+      </div>
+    </div>
+  );
+}
diff --git a/frontend/src/components/workspace/thread-memory-test-panel.tsx b/frontend/src/components/workspace/thread-memory-test-panel.tsx
deleted file mode 100644
index ea3fd11e..00000000
--- a/frontend/src/components/workspace/thread-memory-test-panel.tsx
+++ /dev/null
@@ -1,142 +0,0 @@
-"use client";
-
-import { useState } from "react";
-import { toast } from "sonner";
-
-import { Button } from "@/components/ui/button";
-import { Textarea } from "@/components/ui/textarea";
-import { getBackendBaseURL } from "@/core/config";
-
-type ThreadMemoryTestPanelProps = {
-  threadId?: string;
-};
-
-export function ThreadMemoryTestPanel({ threadId }: ThreadMemoryTestPanelProps) {
-  const [memorySummary, setMemorySummary] = useState("");
-  const [memoryVersion, setMemoryVersion] = useState<number | null>(null);
-  const [loadingSummary, setLoadingSummary] = useState(false);
-  const [savingSummary, setSavingSummary] = useState(false);
-  const [deletingMemory, setDeletingMemory] = useState(false);
-  const [open, setOpen] = useState(true);
-
-  if (!threadId || threadId === "new") return null;
-
-  const handleLoadMemorySummary = async () => {
-    setLoadingSummary(true);
-    try {
-      const res = await fetch(
-        `${getBackendBaseURL()}/api/threads/${encodeURIComponent(threadId)}/memory-summary`,
-      );
-      if (!res.ok) throw new Error(`HTTP ${res.status}`);
-      const data = (await res.json()) as { summary: string; memoryVersion: number };
-      setMemorySummary(data.summary ?? "");
-      setMemoryVersion(data.memoryVersion ?? 0);
-      toast.success("已加载会话记忆");
-    } catch {
-      toast.error("加载会话记忆失败");
-    } finally {
-      setLoadingSummary(false);
-    }
-  };
-
-  const handleSaveMemorySummary = async () => {
-    if (memoryVersion == null) return;
-    setSavingSummary(true);
-    try {
-      const res = await fetch(
-        `${getBackendBaseURL()}/api/threads/${encodeURIComponent(threadId)}/memory-summary`,
-        {
-          method: "POST",
-          headers: { "Content-Type": "application/json" },
-          body: JSON.stringify({ summary: memorySummary, memoryVersion }),
-        },
-      );
-      if (res.status === 409) {
-        toast.error("记忆已更新，请先重新加载再保存");
-        return;
-      }
-      if (!res.ok) throw new Error(`HTTP ${res.status}`);
-      const data = (await res.json()) as { memoryVersion?: number };
-      if (typeof data.memoryVersion === "number") setMemoryVersion(data.memoryVersion);
-      toast.success("会话记忆已保存");
-    } catch {
-      toast.error("保存会话记忆失败");
-    } finally {
-      setSavingSummary(false);
-    }
-  };
-
-  const handleDeleteMemory = async () => {
-    setDeletingMemory(true);
-    try {
-      const res = await fetch(
-        `${getBackendBaseURL()}/api/threads/${encodeURIComponent(threadId)}/memory`,
-        { method: "DELETE" },
-      );
-      if (!res.ok) throw new Error(`HTTP ${res.status}`);
-      setMemorySummary("");
-      setMemoryVersion(0);
-      toast.success("当前会话记忆已删除");
-    } catch {
-      toast.error("删除会话记忆失败");
-    } finally {
-      setDeletingMemory(false);
-    }
-  };
-
-  return (
-    <div className="fixed right-4 bottom-4 z-50 w-[380px] rounded-lg border border-ws-divider bg-ws-surface-elevated p-3 shadow-lg">
-      <div className="mb-2 flex items-center justify-between">
-        <div className="text-sm font-semibold">Thread Memory TestPanel</div>
-        <Button size="sm" variant="ghost" onClick={() => setOpen((v) => !v)}>
-          {open ? "收起" : "展开"}
-        </Button>
-      </div>
-      {open && (
-        <div className="space-y-2">
-          <div className="flex items-center gap-2">
-            <Button
-              size="sm"
-              variant="outline"
-              onClick={() => {
-                void handleLoadMemorySummary();
-              }}
-              disabled={loadingSummary}
-            >
-              {loadingSummary ? "加载中..." : "查看记忆"}
-            </Button>
-            <Button
-              size="sm"
-              onClick={() => {
-                void handleSaveMemorySummary();
-              }}
-              disabled={savingSummary || memoryVersion == null}
-            >
-              {savingSummary ? "保存中..." : "保存记忆"}
-            </Button>
-            <Button
-              size="sm"
-              variant="destructive"
-              onClick={() => {
-                void handleDeleteMemory();
-              }}
-              disabled={deletingMemory}
-            >
-              {deletingMemory ? "删除中..." : "删除记忆"}
-            </Button>
-          </div>
-          <div className="text-xs text-ws-text-subtle-strong">
-            threadId: {threadId.slice(0, 8)}... | version:{" "}
-            {memoryVersion == null ? "-" : memoryVersion}
-          </div>
-          <Textarea
-            value={memorySummary}
-            onChange={(e) => setMemorySummary(e.target.value)}
-            placeholder="这里显示会话记忆总结，可编辑后保存"
-            className="min-h-32 bg-white/80"
-          />
-        </div>
-      )}
-    </div>
-  );
-}
diff --git a/frontend/src/core/i18n/locales/en-US.ts b/frontend/src/core/i18n/locales/en-US.ts
index 19762e79..96b04171 100644
--- a/frontend/src/core/i18n/locales/en-US.ts
+++ b/frontend/src/core/i18n/locales/en-US.ts
@@ -264,6 +264,27 @@ export const enUS: Translations = {
     scrollToBottom: "Scroll to bottom",
   },
 
+  threadMemoryPanel: {
+    title: "Thread Memory",
+    load: "Load memory",
+    loading: "Loading...",
+    save: "Save memory",
+    saving: "Saving...",
+    remove: "Delete memory",
+    removing: "Deleting...",
+    threadId: "Thread ID",
+    version: "Version",
+    unavailableVersion: "-",
+    summaryPlaceholder: "Thread memory summary is shown here. Edit it and save.",
+    toastLoadSuccess: "Thread memory loaded",
+    toastLoadFailed: "Failed to load thread memory",
+    toastConflict: "Memory changed. Please reload before saving.",
+    toastSaveSuccess: "Thread memory saved",
+    toastSaveFailed: "Failed to save thread memory",
+    toastDeleteSuccess: "Thread memory deleted",
+    toastDeleteFailed: "Failed to delete thread memory",
+  },
+
   // Workspace Chat Page
   chatPage: {
     defaultSlogan: "Let's study and work together",
diff --git a/frontend/src/core/i18n/locales/types.ts b/frontend/src/core/i18n/locales/types.ts
index 9fc67cc0..2f877b03 100644
--- a/frontend/src/core/i18n/locales/types.ts
+++ b/frontend/src/core/i18n/locales/types.ts
@@ -194,6 +194,27 @@ export interface Translations {
     scrollToBottom: string;
   };
 
+  threadMemoryPanel: {
+    title: string;
+    load: string;
+    loading: string;
+    save: string;
+    saving: string;
+    remove: string;
+    removing: string;
+    threadId: string;
+    version: string;
+    unavailableVersion: string;
+    summaryPlaceholder: string;
+    toastLoadSuccess: string;
+    toastLoadFailed: string;
+    toastConflict: string;
+    toastSaveSuccess: string;
+    toastSaveFailed: string;
+    toastDeleteSuccess: string;
+    toastDeleteFailed: string;
+  };
+
   // Workspace Chat Page
   chatPage: {
     defaultSlogan: string;
diff --git a/frontend/src/core/i18n/locales/zh-CN.ts b/frontend/src/core/i18n/locales/zh-CN.ts
index c69b34f0..977621b5 100644
--- a/frontend/src/core/i18n/locales/zh-CN.ts
+++ b/frontend/src/core/i18n/locales/zh-CN.ts
@@ -252,6 +252,27 @@ export const zhCN: Translations = {
     scrollToBottom: "滚动到底部",
   },
 
+  threadMemoryPanel: {
+    title: "会话记忆",
+    load: "查看记忆",
+    loading: "加载中...",
+    save: "保存记忆",
+    saving: "保存中...",
+    remove: "删除记忆",
+    removing: "删除中...",
+    threadId: "threadId",
+    version: "版本",
+    unavailableVersion: "-",
+    summaryPlaceholder: "这里显示会话记忆总结，可编辑后保存",
+    toastLoadSuccess: "已加载会话记忆",
+    toastLoadFailed: "加载会话记忆失败",
+    toastConflict: "记忆已更新，请先重新加载再保存",
+    toastSaveSuccess: "会话记忆已保存",
+    toastSaveFailed: "保存会话记忆失败",
+    toastDeleteSuccess: "当前会话记忆已删除",
+    toastDeleteFailed: "删除会话记忆失败",
+  },
+
   // Workspace Chat Page
   chatPage: {
     defaultSlogan: "来，一起学习工作吧",