diff --git a/src/components/ChatBox/MessageItem/AgentMessageCard.tsx b/src/components/ChatBox/MessageItem/AgentMessageCard.tsx
index f5fb2036..60699d08 100644
--- a/src/components/ChatBox/MessageItem/AgentMessageCard.tsx
+++ b/src/components/ChatBox/MessageItem/AgentMessageCard.tsx
@@ -12,11 +12,15 @@
 // limitations under the License.
 // ========= Copyright 2025-2026 @ Eigent.ai All Rights Reserved. =========
 
-import { Copy, FileText } from 'lucide-react';
-import { useMemo } from 'react';
+import { Check, Copy, FileText } from 'lucide-react';
+import { useCallback, useMemo, useState } from 'react';
+import { useTranslation } from 'react-i18next';
+import { toast } from 'sonner';
 import { Button } from '../../ui/button';
 import { MarkDown } from './MarkDown';
 
+const COPIED_RESET_MS = 2000;
+
 interface AgentMessageCardProps {
   id: string;
   content: string;
@@ -48,6 +52,9 @@ export function AgentMessageCard({
   // if completed, disable typewriter effect
   const enableTypewriter = !isCompleted;
 
+  const [copied, setCopied] = useState(false);
+  const { t } = useTranslation();
+
   // when typewriter effect is completed, record to global Map
   const handleTypingComplete = () => {
     if (!isCompleted) {
@@ -58,9 +65,16 @@ export function AgentMessageCard({
     }
   };
 
-  const handleCopy = () => {
-    navigator.clipboard.writeText(content);
-  };
+  const handleCopy = useCallback(async () => {
+    try {
+      await navigator.clipboard.writeText(content);
+      toast.success(t('setting.copied-to-clipboard'));
+      setCopied(true);
+      setTimeout(() => setCopied(false), COPIED_RESET_MS);
+    } catch {
+      toast.error('Failed to copy to clipboard');
+    }
+  }, [content, t]);
 
   return (
     <div
@@ -69,7 +83,11 @@ export function AgentMessageCard({
     >
       <div className="absolute bottom-[0px] right-1 opacity-0 transition-opacity duration-300 group-hover:opacity-100">
         <Button onClick={handleCopy} variant="ghost" size="icon">
-          <Copy />
+          {copied ? (
+            <Check className="h-4 w-4 text-text-success" />
+          ) : (
+            <Copy className="h-4 w-4" />
+          )}
         </Button>
       </div>
       <MarkDown
diff --git a/src/components/ChatBox/MessageItem/FeedbackCard.tsx b/src/components/ChatBox/MessageItem/FeedbackCard.tsx
index f587a653..eb8ef7ed 100644
--- a/src/components/ChatBox/MessageItem/FeedbackCard.tsx
+++ b/src/components/ChatBox/MessageItem/FeedbackCard.tsx
@@ -13,8 +13,12 @@
 // ========= Copyright 2025-2026 @ Eigent.ai All Rights Reserved. =========
 
 import { Button } from '@/components/ui/button';
-import { Copy } from 'lucide-react';
-import { useState } from 'react';
+import { Check, Copy } from 'lucide-react';
+import { useCallback, useEffect, useRef, useState } from 'react';
+import { useTranslation } from 'react-i18next';
+import { toast } from 'sonner';
+
+const COPIED_RESET_MS = 2000;
 
 interface FeedbackCardProps {
   id: string;
@@ -34,10 +38,34 @@ export function FeedbackCard({
   className,
 }: FeedbackCardProps) {
   const [_isHovered, setIsHovered] = useState(false);
+  const [copied, setCopied] = useState(false);
+  const timeoutRef = useRef<number | null>(null);
+  const { t } = useTranslation();
 
-  const handleCopy = () => {
-    navigator.clipboard.writeText(content);
-  };
+  const handleCopy = useCallback(async () => {
+    try {
+      await navigator.clipboard.writeText(content);
+      toast.success(t('setting.copied-to-clipboard'));
+      setCopied(true);
+      if (timeoutRef.current !== null) {
+        clearTimeout(timeoutRef.current);
+      }
+      timeoutRef.current = window.setTimeout(() => {
+        setCopied(false);
+        timeoutRef.current = null;
+      }, COPIED_RESET_MS);
+    } catch {
+      toast.error(t('setting.failed-to-copy-to-clipboard'));
+    }
+  }, [content, t]);
+
+  useEffect(() => {
+    return () => {
+      if (timeoutRef.current !== null) {
+        clearTimeout(timeoutRef.current);
+      }
+    };
+  }, []);
 
   return (
     <div
@@ -49,7 +77,11 @@ export function FeedbackCard({
       {/* Copy button - appears on hover */}
       <div className="absolute bottom-1 right-1 opacity-0 transition-opacity duration-300 group-hover:opacity-100">
         <Button onClick={handleCopy} variant="ghost" size="icon">
-          <Copy className="h-4 w-4" />
+          {copied ? (
+            <Check className="h-4 w-4 text-text-success" />
+          ) : (
+            <Copy className="h-4 w-4" />
+          )}
         </Button>
       </div>
 
diff --git a/src/components/ChatBox/MessageItem/UserMessageCard.tsx b/src/components/ChatBox/MessageItem/UserMessageCard.tsx
index bf0183cf..4c408224 100644
--- a/src/components/ChatBox/MessageItem/UserMessageCard.tsx
+++ b/src/components/ChatBox/MessageItem/UserMessageCard.tsx
@@ -13,11 +13,15 @@
 // ========= Copyright 2025-2026 @ Eigent.ai All Rights Reserved. =========
 
 import { cn } from '@/lib/utils';
-import { Copy, FileText, Image } from 'lucide-react';
-import { useRef, useState } from 'react';
+import { Check, Copy, FileText, Image } from 'lucide-react';
+import { useCallback, useRef, useState } from 'react';
+import { useTranslation } from 'react-i18next';
+import { toast } from 'sonner';
 import { Button } from '../../ui/button';
 import { Popover, PopoverContent, PopoverTrigger } from '../../ui/popover';
 
+const COPIED_RESET_MS = 2000;
+
 interface UserMessageCardProps {
   id: string;
   content: string;
@@ -33,11 +37,20 @@ export function UserMessageCard({
 }: UserMessageCardProps) {
   const [_hoveredFilePath, setHoveredFilePath] = useState<string | null>(null);
   const [isRemainingOpen, setIsRemainingOpen] = useState(false);
+  const [copied, setCopied] = useState(false);
   const hoverCloseTimerRef = useRef<number | null>(null);
+  const { t } = useTranslation();
 
-  const handleCopy = () => {
-    navigator.clipboard.writeText(content);
-  };
+  const handleCopy = useCallback(async () => {
+    try {
+      await navigator.clipboard.writeText(content);
+      toast.success(t('setting.copied-to-clipboard'));
+      setCopied(true);
+      setTimeout(() => setCopied(false), COPIED_RESET_MS);
+    } catch {
+      toast.error('Failed to copy to clipboard');
+    }
+  }, [content, t]);
 
   // Popover handles outside clicks; no manual listener needed
   const openRemainingPopover = () => {
@@ -73,7 +86,11 @@ export function UserMessageCard({
     >
       <div className="absolute bottom-[0px] right-1 opacity-0 transition-opacity duration-300 group-hover:opacity-100">
         <Button onClick={handleCopy} variant="ghost" size="icon">
-          <Copy />
+          {copied ? (
+            <Check className="h-4 w-4 text-text-success" />
+          ) : (
+            <Copy className="h-4 w-4" />
+          )}
         </Button>
       </div>
       <div className="whitespace-pre-wrap break-words text-body-sm text-text-body">
diff --git a/src/i18n/locales/ar/setting.json b/src/i18n/locales/ar/setting.json
index a20b363e..293108ee 100644
--- a/src/i18n/locales/ar/setting.json
+++ b/src/i18n/locales/ar/setting.json
@@ -42,6 +42,7 @@
   "validate-failed": "فشل التحقق",
   "copy": "نسخ",
   "copied-to-clipboard": "تم النسخ إلى الحافظة",
+  "failed-to-copy-to-clipboard": "فشل النسخ إلى الحافظة",
   "endpoint-url-can-not-be-empty": "!لا يمكن أن يكون عنوان يورل  لنقطة النهاية فارغًا",
   "verification-failed-please-check-endpoint-url": "فشل التحقق، يرجى المراجعة على النقطة النهائية يورل",
   "eigent-cloud-version": "إصدار أيجنت السحابي",
diff --git a/src/i18n/locales/de/setting.json b/src/i18n/locales/de/setting.json
index 0bbc3be4..285fd2b5 100644
--- a/src/i18n/locales/de/setting.json
+++ b/src/i18n/locales/de/setting.json
@@ -42,6 +42,7 @@
   "validate-failed": "Validierung fehlgeschlagen",
   "copy": "Kopieren",
   "copied-to-clipboard": "In die Zwischenablage kopiert",
+  "failed-to-copy-to-clipboard": "Kopieren in die Zwischenablage fehlgeschlagen",
   "endpoint-url-can-not-be-empty": "Endpunkt-URL darf nicht leer sein!",
   "verification-failed-please-check-endpoint-url": "Verifizierung fehlgeschlagen, bitte überprüfen Sie die Endpunkt-URL",
   "eigent-cloud-version": "Eigent Cloud-Version",
diff --git a/src/i18n/locales/en-us/setting.json b/src/i18n/locales/en-us/setting.json
index f04446e4..6e89f50d 100644
--- a/src/i18n/locales/en-us/setting.json
+++ b/src/i18n/locales/en-us/setting.json
@@ -42,6 +42,7 @@
   "validate-failed": "Validate failed",
   "copy": "Copy",
   "copied-to-clipboard": "Copied to clipboard",
+  "failed-to-copy-to-clipboard": "Failed to copy to clipboard",
   "endpoint-url-can-not-be-empty": "Endpoint URL can not be empty!",
   "verification-failed-please-check-endpoint-url": "Verification failed, please check Endpoint URL",
   "eigent-cloud-version": "Eigent Cloud Version",
@@ -258,6 +259,7 @@
   "validate-failed": "Validate failed",
   "copy": "Copy",
   "copied-to-clipboard": "Copied to clipboard",
+  "failed-to-copy-to-clipboard": "Failed to copy to clipboard",
   "endpoint-url-can-not-be-empty": "Endpoint URL can not be empty!",
   "verification-failed-please-check-endpoint-url": "Verification failed, please check Endpoint URL",
   "eigent-cloud-version": "Eigent Cloud Version",
diff --git a/src/i18n/locales/es/setting.json b/src/i18n/locales/es/setting.json
index 04e299d2..e78d5a3d 100644
--- a/src/i18n/locales/es/setting.json
+++ b/src/i18n/locales/es/setting.json
@@ -42,6 +42,7 @@
   "validate-failed": "Validación fallida",
   "copy": "Copiar",
   "copied-to-clipboard": "Copiado al portapapeles",
+  "failed-to-copy-to-clipboard": "Error al copiar al portapapeles",
   "endpoint-url-can-not-be-empty": "Endpoint URL no puede estar vacío!",
   "verification-failed-please-check-endpoint-url": "Verificación fallida, por favor verifique Endpoint URL",
   "eigent-cloud-version": "Eigent Cloud Version",
diff --git a/src/i18n/locales/fr/setting.json b/src/i18n/locales/fr/setting.json
index 2d95585a..0ed9bcda 100644
--- a/src/i18n/locales/fr/setting.json
+++ b/src/i18n/locales/fr/setting.json
@@ -42,6 +42,7 @@
   "validate-failed": "Validate failed",
   "copy": "Copy",
   "copied-to-clipboard": "Copied to clipboard",
+  "failed-to-copy-to-clipboard": "Échec de la copie dans le presse-papiers",
   "endpoint-url-can-not-be-empty": "Endpoint URL can not be empty!",
   "verification-failed-please-check-endpoint-url": "Verification failed, please check Endpoint URL",
   "eigent-cloud-version": "Eigent Cloud Version",
diff --git a/src/i18n/locales/it/setting.json b/src/i18n/locales/it/setting.json
index 127d8936..01ee885a 100644
--- a/src/i18n/locales/it/setting.json
+++ b/src/i18n/locales/it/setting.json
@@ -42,6 +42,7 @@
   "validate-failed": "Validazione fallita",
   "copy": "Copia",
   "copied-to-clipboard": "Copiato negli appunti",
+  "failed-to-copy-to-clipboard": "Impossibile copiare negli appunti",
   "endpoint-url-can-not-be-empty": "L'URL dell'endpoint non può essere vuoto!",
   "verification-failed-please-check-endpoint-url": "Verifica fallita, controlla l'URL dell'endpoint",
   "eigent-cloud-version": "Versione cloud di Eigent",
diff --git a/src/i18n/locales/ja/setting.json b/src/i18n/locales/ja/setting.json
index 41d6d63b..1f0a07af 100644
--- a/src/i18n/locales/ja/setting.json
+++ b/src/i18n/locales/ja/setting.json
@@ -42,6 +42,7 @@
   "validate-failed": "検証失敗",
   "copy": "コピー",
   "copied-to-clipboard": "クリップボードにコピーしました",
+  "failed-to-copy-to-clipboard": "クリップボードへのコピーに失敗しました",
   "endpoint-url-can-not-be-empty": "エンドポイントURLは空にできません！",
   "verification-failed-please-check-endpoint-url": "検証に失敗しました。エンドポイントURLを確認してください",
   "eigent-cloud-version": "Eigentクラウドバージョン",
@@ -110,6 +111,7 @@
   "validate-failed": "検証失敗",
   "copy": "コピー",
   "copied-to-clipboard": "クリップボードにコピーしました",
+  "failed-to-copy-to-clipboard": "クリップボードにコピーに失敗しました",
   "endpoint-url-can-not-be-empty": "エンドポイントURLは空にできません！",
   "verification-failed-please-check-endpoint-url": "検証に失敗しました。エンドポイントURLを確認してください",
   "eigent-cloud-version": "Eigentクラウドバージョン",
diff --git a/src/i18n/locales/ko/setting.json b/src/i18n/locales/ko/setting.json
index ec0df8ea..029e0138 100644
--- a/src/i18n/locales/ko/setting.json
+++ b/src/i18n/locales/ko/setting.json
@@ -42,6 +42,7 @@
   "validate-failed": "유효성 검사 실패",
   "copy": "복사",
   "copied-to-clipboard": "클립보드에 복사됨",
+  "failed-to-copy-to-clipboard": "클립보드로 복사하지 못했습니다",
   "endpoint-url-can-not-be-empty": "엔드포인트 URL은 비워둘 수 없습니다!",
   "verification-failed-please-check-endpoint-url": "확인 실패, 엔드포인트 URL을 확인하세요",
   "eigent-cloud-version": "Eigent 클라우드 버전",
@@ -110,6 +111,7 @@
   "validate-failed": "유효성 검사 실패",
   "copy": "복사",
   "copied-to-clipboard": "클립보드에 복사됨",
+  "failed-to-copy-to-clipboard": "클립보드에 복사에 실패했습니다",
   "endpoint-url-can-not-be-empty": "엔드포인트 URL은 비워둘 수 없습니다!",
   "verification-failed-please-check-endpoint-url": "확인 실패, 엔드포인트 URL을 확인하세요",
   "eigent-cloud-version": "Eigent 클라우드 버전",
diff --git a/src/i18n/locales/ru/setting.json b/src/i18n/locales/ru/setting.json
index a96aa1b5..b158677e 100644
--- a/src/i18n/locales/ru/setting.json
+++ b/src/i18n/locales/ru/setting.json
@@ -42,6 +42,7 @@
   "validate-failed": "Проверка не удалась",
   "copy": "Копировать",
   "copied-to-clipboard": "Скопировано в буфер обмена",
+  "failed-to-copy-to-clipboard": "Не удалось скопировать в буфер обмена",
   "endpoint-url-can-not-be-empty": "URL конечной точки не может быть пустым!",
   "verification-failed-please-check-endpoint-url": "Проверка не удалась, проверьте URL конечной точки",
   "eigent-cloud-version": "Eigent Cloud Версия",
diff --git a/src/i18n/locales/zh-Hans/setting.json b/src/i18n/locales/zh-Hans/setting.json
index 3497d1ea..0c59d252 100644
--- a/src/i18n/locales/zh-Hans/setting.json
+++ b/src/i18n/locales/zh-Hans/setting.json
@@ -44,6 +44,7 @@
   "validate-failed": "验证失败",
   "copy": "复制",
   "copied-to-clipboard": "复制到剪贴板",
+  "failed-to-copy-to-clipboard": "复制到剪贴板失败",
   "endpoint-url-can-not-be-empty": "Endpoint URL 不能为空！",
   "verification-failed-please-check-endpoint-url": "验证失败，请检查 Endpoint URL",
   "eigent-cloud-version": "Eigent 云端版本",
diff --git a/src/i18n/locales/zh-Hant/setting.json b/src/i18n/locales/zh-Hant/setting.json
index 93b120a2..069735df 100644
--- a/src/i18n/locales/zh-Hant/setting.json
+++ b/src/i18n/locales/zh-Hant/setting.json
@@ -41,6 +41,7 @@
   "validate-failed": "驗證失敗",
   "copy": "複製",
   "copied-to-clipboard": "已複製到剪貼板",
+  "failed-to-copy-to-clipboard": "複製到剪貼板失敗",
   "endpoint-url-can-not-be-empty": "端點 URL 不可為空！",
   "verification-failed-please-check-endpoint-url": "驗證失敗，請檢查端點 URL",
   "eigent-cloud-version": "Eigent 雲端版本",