diff --git a/CHANGELOG.md b/CHANGELOG.md
index fac2c621fe8..30457d4abf1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,31 @@
 
 # Changelog
 
+### [Version 1.139.3](https://github.com/lobehub/lobe-chat/compare/v1.139.2...v1.139.3)
+
+<sup>Released on **2025-10-21**</sup>
+
+#### 💄 Styles
+
+- **misc**: Show message author in minimap.
+
+<br/>
+
+<details>
+<summary><kbd>Improvements and Fixes</kbd></summary>
+
+#### Styles
+
+- **misc**: Show message author in minimap, closes [#9797](https://github.com/lobehub/lobe-chat/issues/9797) ([f6daefb](https://github.com/lobehub/lobe-chat/commit/f6daefb))
+
+</details>
+
+<div align="right">
+
+[![](https://img.shields.io/badge/-BACK_TO_TOP-151515?style=flat-square)](#readme-top)
+
+</div>
+
 ### [Version 1.139.2](https://github.com/lobehub/lobe-chat/compare/v1.139.1...v1.139.2)
 
 <sup>Released on **2025-10-20**</sup>
diff --git a/changelog/v1.json b/changelog/v1.json
index b07a5794461..a47d6fb8b83 100644
--- a/changelog/v1.json
+++ b/changelog/v1.json
@@ -1,4 +1,11 @@
 [
+  {
+    "children": {
+      "improvements": ["Show message author in minimap."]
+    },
+    "date": "2025-10-21",
+    "version": "1.139.3"
+  },
   {
     "children": {
       "improvements": ["Solve when desktop the sider agent list too long."]
diff --git a/locales/ar/chat.json b/locales/ar/chat.json
index 50ac445ac4b..9047f413df0 100644
--- a/locales/ar/chat.json
+++ b/locales/ar/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "الانتقال إلى الرسالة رقم {{index}}",
     "nextMessage": "الرسالة التالية",
-    "previousMessage": "الرسالة السابقة"
+    "previousMessage": "الرسالة السابقة",
+    "senderAssistant": "المساعد",
+    "senderUser": "أنت"
   },
   "newAgent": "مساعد جديد",
   "newGroupChat": "إنشاء دردشة جماعية جديدة",
diff --git a/locales/bg-BG/chat.json b/locales/bg-BG/chat.json
index cbd751c81f1..2e1615a4e60 100644
--- a/locales/bg-BG/chat.json
+++ b/locales/bg-BG/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "Отиди до съобщение № {{index}}",
     "nextMessage": "Следващо съобщение",
-    "previousMessage": "Предишно съобщение"
+    "previousMessage": "Предишно съобщение",
+    "senderAssistant": "Асистент",
+    "senderUser": "Ти"
   },
   "newAgent": "Нов агент",
   "newGroupChat": "Създаване на нов групов чат",
diff --git a/locales/de-DE/chat.json b/locales/de-DE/chat.json
index 802e5f07800..8776ad87b01 100644
--- a/locales/de-DE/chat.json
+++ b/locales/de-DE/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "Zur Nachricht Nr. {{index}} springen",
     "nextMessage": "Nächste Nachricht",
-    "previousMessage": "Vorherige Nachricht"
+    "previousMessage": "Vorherige Nachricht",
+    "senderAssistant": "Assistent",
+    "senderUser": "Du"
   },
   "newAgent": "Neuer Assistent",
   "newGroupChat": "Neue Gruppe erstellen",
diff --git a/locales/en-US/chat.json b/locales/en-US/chat.json
index 36a1f63c874..1621458498d 100644
--- a/locales/en-US/chat.json
+++ b/locales/en-US/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "Jump to message {{index}}",
     "nextMessage": "Next message",
-    "previousMessage": "Previous message"
+    "previousMessage": "Previous message",
+    "senderAssistant": "Assistant",
+    "senderUser": "You"
   },
   "newAgent": "New Assistant",
   "newGroupChat": "New Group Chat",
diff --git a/locales/es-ES/chat.json b/locales/es-ES/chat.json
index f7f32d02e6c..c9709d3f841 100644
--- a/locales/es-ES/chat.json
+++ b/locales/es-ES/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "Ir al mensaje número {{index}}",
     "nextMessage": "Mensaje siguiente",
-    "previousMessage": "Mensaje anterior"
+    "previousMessage": "Mensaje anterior",
+    "senderAssistant": "Asistente",
+    "senderUser": "Tú"
   },
   "newAgent": "Nuevo asistente",
   "newGroupChat": "Crear nuevo chat de grupo",
diff --git a/locales/fa-IR/chat.json b/locales/fa-IR/chat.json
index 3c7ca942347..792acc47953 100644
--- a/locales/fa-IR/chat.json
+++ b/locales/fa-IR/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "رفتن به پیام شماره {{index}}",
     "nextMessage": "پیام بعدی",
-    "previousMessage": "پیام قبلی"
+    "previousMessage": "پیام قبلی",
+    "senderAssistant": "دستیار",
+    "senderUser": "شما"
   },
   "newAgent": "دستیار جدید",
   "newGroupChat": "ایجاد چت گروهی جدید",
diff --git a/locales/fr-FR/chat.json b/locales/fr-FR/chat.json
index 8a42a032606..871ae111471 100644
--- a/locales/fr-FR/chat.json
+++ b/locales/fr-FR/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "Aller au message n° {{index}}",
     "nextMessage": "Message suivant",
-    "previousMessage": "Message précédent"
+    "previousMessage": "Message précédent",
+    "senderAssistant": "Assistant",
+    "senderUser": "Vous"
   },
   "newAgent": "Nouvel agent",
   "newGroupChat": "Nouveau groupe de discussion",
diff --git a/locales/it-IT/chat.json b/locales/it-IT/chat.json
index f4cb18a4e75..06ee5a15990 100644
--- a/locales/it-IT/chat.json
+++ b/locales/it-IT/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "Vai al messaggio n. {{index}}",
     "nextMessage": "Messaggio successivo",
-    "previousMessage": "Messaggio precedente"
+    "previousMessage": "Messaggio precedente",
+    "senderAssistant": "Assistente",
+    "senderUser": "Tu"
   },
   "newAgent": "Nuovo assistente",
   "newGroupChat": "Nuova chat di gruppo",
diff --git a/locales/ja-JP/chat.json b/locales/ja-JP/chat.json
index ad62ff8647b..386b5f13e94 100644
--- a/locales/ja-JP/chat.json
+++ b/locales/ja-JP/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "メッセージ {{index}} へジャンプ",
     "nextMessage": "次のメッセージ",
-    "previousMessage": "前のメッセージ"
+    "previousMessage": "前のメッセージ",
+    "senderAssistant": "アシスタント",
+    "senderUser": "あなた"
   },
   "newAgent": "新しいエージェント",
   "newGroupChat": "新しいグループチャットを作成",
diff --git a/locales/ko-KR/chat.json b/locales/ko-KR/chat.json
index ef2a3c9768f..717ffba62ce 100644
--- a/locales/ko-KR/chat.json
+++ b/locales/ko-KR/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "{{index}}번째 메시지로 이동",
     "nextMessage": "다음 메시지",
-    "previousMessage": "이전 메시지"
+    "previousMessage": "이전 메시지",
+    "senderAssistant": "도우미",
+    "senderUser": "당신"
   },
   "newAgent": "새 도우미",
   "newGroupChat": "새 그룹 채팅 만들기",
diff --git a/locales/nl-NL/chat.json b/locales/nl-NL/chat.json
index 63f70fbc531..c661372403e 100644
--- a/locales/nl-NL/chat.json
+++ b/locales/nl-NL/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "Ga naar bericht {{index}}",
     "nextMessage": "Volgend bericht",
-    "previousMessage": "Vorig bericht"
+    "previousMessage": "Vorig bericht",
+    "senderAssistant": "Assistent",
+    "senderUser": "Jij"
   },
   "newAgent": "Nieuwe assistent",
   "newGroupChat": "Nieuwe groepschat",
diff --git a/locales/pl-PL/chat.json b/locales/pl-PL/chat.json
index e14b32891d2..284cc792107 100644
--- a/locales/pl-PL/chat.json
+++ b/locales/pl-PL/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "Przejdź do wiadomości nr {{index}}",
     "nextMessage": "Następna wiadomość",
-    "previousMessage": "Poprzednia wiadomość"
+    "previousMessage": "Poprzednia wiadomość",
+    "senderAssistant": "Asystent",
+    "senderUser": "Ty"
   },
   "newAgent": "Nowy asystent",
   "newGroupChat": "Utwórz nowy czat grupowy",
diff --git a/locales/pt-BR/chat.json b/locales/pt-BR/chat.json
index 1c57b0abd01..34eb08536ec 100644
--- a/locales/pt-BR/chat.json
+++ b/locales/pt-BR/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "Ir para a mensagem nº {{index}}",
     "nextMessage": "Próxima mensagem",
-    "previousMessage": "Mensagem anterior"
+    "previousMessage": "Mensagem anterior",
+    "senderAssistant": "Assistente",
+    "senderUser": "Você"
   },
   "newAgent": "Novo Assistente",
   "newGroupChat": "Criar novo grupo",
diff --git a/locales/ru-RU/chat.json b/locales/ru-RU/chat.json
index 716c239d15b..2d398f3e7d4 100644
--- a/locales/ru-RU/chat.json
+++ b/locales/ru-RU/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "Перейти к сообщению № {{index}}",
     "nextMessage": "Следующее сообщение",
-    "previousMessage": "Предыдущее сообщение"
+    "previousMessage": "Предыдущее сообщение",
+    "senderAssistant": "Ассистент",
+    "senderUser": "Вы"
   },
   "newAgent": "Создать помощника",
   "newGroupChat": "Создать групповой чат",
diff --git a/locales/tr-TR/chat.json b/locales/tr-TR/chat.json
index 14ca983cff6..aa7e2097d6a 100644
--- a/locales/tr-TR/chat.json
+++ b/locales/tr-TR/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "{{index}} numaralı mesaja atla",
     "nextMessage": "Sonraki mesaj",
-    "previousMessage": "Önceki mesaj"
+    "previousMessage": "Önceki mesaj",
+    "senderAssistant": "Asistan",
+    "senderUser": "Sen"
   },
   "newAgent": "Yeni Asistan",
   "newGroupChat": "Yeni grup sohbeti oluştur",
diff --git a/locales/vi-VN/chat.json b/locales/vi-VN/chat.json
index 15d66a99f3a..b2a2f857847 100644
--- a/locales/vi-VN/chat.json
+++ b/locales/vi-VN/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "Chuyển đến tin nhắn thứ {{index}}",
     "nextMessage": "Tin nhắn tiếp theo",
-    "previousMessage": "Tin nhắn trước"
+    "previousMessage": "Tin nhắn trước",
+    "senderAssistant": "Trợ lý",
+    "senderUser": "Bạn"
   },
   "newAgent": "Tạo trợ lý mới",
   "newGroupChat": "Tạo nhóm mới",
diff --git a/locales/zh-CN/chat.json b/locales/zh-CN/chat.json
index 82a9e3fc874..0b65d08f0d7 100644
--- a/locales/zh-CN/chat.json
+++ b/locales/zh-CN/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "跳转至第 {{index}} 条消息",
     "nextMessage": "下一条消息",
-    "previousMessage": "上一条消息"
+    "previousMessage": "上一条消息",
+    "senderAssistant": "助手",
+    "senderUser": "你"
   },
   "newAgent": "新建助手",
   "newGroupChat": "新建群聊",
diff --git a/locales/zh-TW/chat.json b/locales/zh-TW/chat.json
index 4542de420dc..fd459e9d6b1 100644
--- a/locales/zh-TW/chat.json
+++ b/locales/zh-TW/chat.json
@@ -228,7 +228,9 @@
   "minimap": {
     "jumpToMessage": "跳轉至第 {{index}} 條訊息",
     "nextMessage": "下一條訊息",
-    "previousMessage": "上一條訊息"
+    "previousMessage": "上一條訊息",
+    "senderAssistant": "助理",
+    "senderUser": "您"
   },
   "newAgent": "新建助手",
   "newGroupChat": "建立群組",
diff --git a/package.json b/package.json
index 2475e5b06a5..d64825f84b4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@lobehub/chat",
-  "version": "1.139.2",
+  "version": "1.139.3",
   "description": "Lobe Chat - an open-source, high-performance chatbot framework that supports speech synthesis, multimodal, and extensible Function Call plugin system. Supports one-click free deployment of your private ChatGPT/LLM web application.",
   "keywords": [
     "framework",
@@ -238,7 +238,7 @@
     "oidc-provider": "^9.5.1",
     "ollama": "^0.6.0",
     "openai": "^4.104.0",
-    "openapi-fetch": "^0.9.8",
+    "openapi-fetch": "^0.14.0",
     "partial-json": "^0.1.7",
     "path-browserify-esm": "^1.0.6",
     "pdf-parse": "^1.1.1",
diff --git a/src/app/[variants]/(main)/chat/(workspace)/@conversation/features/ChatMinimap/index.tsx b/src/app/[variants]/(main)/chat/(workspace)/@conversation/features/ChatMinimap/index.tsx
index c5269b6581a..94f59ed9256 100644
--- a/src/app/[variants]/(main)/chat/(workspace)/@conversation/features/ChatMinimap/index.tsx
+++ b/src/app/[variants]/(main)/chat/(workspace)/@conversation/features/ChatMinimap/index.tsx
@@ -1,7 +1,7 @@
 'use client';
 
 import { Icon } from '@lobehub/ui';
-import { Tooltip } from 'antd';
+import { Popover, Tooltip } from 'antd';
 import { createStyles, useTheme } from 'antd-style';
 import debug from 'debug';
 import { ChevronDown, ChevronUp } from 'lucide-react';
@@ -114,6 +114,19 @@ const useStyles = createStyles(({ css, token }) => ({
   indicatorContentActive: css`
     background: ${token.colorPrimary};
   `,
+  popoverContent: css`
+    max-width: 300px;
+  `,
+  popoverLabel: css`
+    margin-block-end: 4px;
+    font-size: 12px;
+    font-weight: 600;
+    color: ${token.colorTextSecondary};
+  `,
+  popoverText: css`
+    color: ${token.colorText};
+    word-break: break-word;
+  `,
   rail: css`
     pointer-events: auto;
 
@@ -174,6 +187,7 @@ const getPreviewText = (content: string | undefined) => {
 interface MinimapIndicator {
   id: string;
   preview: string;
+  role: 'user' | 'assistant';
   virtuosoIndex: number;
   width: number;
 }
@@ -203,6 +217,7 @@ const ChatMinimap = () => {
       acc.push({
         id: message.id,
         preview: getPreviewText(message.content),
+        role: message.role,
         virtuosoIndex,
         width: getIndicatorWidth(message.content),
       });
@@ -317,16 +332,20 @@ const ChatMinimap = () => {
           </button>
         </Tooltip>
         <Flexbox className={styles.railContent}>
-          {indicators.map(({ id, width, preview, virtuosoIndex }, position) => {
+          {indicators.map(({ id, width, preview, role, virtuosoIndex }, position) => {
             const isActive = activeIndicatorPosition === position;
+            const senderLabel =
+              role === 'user' ? t('minimap.senderUser') : t('minimap.senderAssistant');
+
+            const popoverContent = preview ? (
+              <div className={styles.popoverContent}>
+                <div className={styles.popoverLabel}>{senderLabel}</div>
+                <div className={styles.popoverText}>{preview}</div>
+              </div>
+            ) : undefined;
 
             return (
-              <Tooltip
-                key={id}
-                mouseEnterDelay={0.1}
-                placement={'left'}
-                title={preview || undefined}
-              >
+              <Popover content={popoverContent} key={id} mouseEnterDelay={0.1} placement={'left'}>
                 <button
                   aria-current={isActive ? 'true' : undefined}
                   aria-label={t('minimap.jumpToMessage', { index: position + 1 })}
@@ -344,7 +363,7 @@ const ChatMinimap = () => {
                     )}
                   />
                 </button>
-              </Tooltip>
+              </Popover>
             );
           })}
         </Flexbox>
diff --git a/src/locales/default/chat.ts b/src/locales/default/chat.ts
index 8b2516e8948..2d857c4048e 100644
--- a/src/locales/default/chat.ts
+++ b/src/locales/default/chat.ts
@@ -247,6 +247,8 @@ export default {
     jumpToMessage: '跳转至第 {{index}} 条消息',
     nextMessage: '下一条消息',
     previousMessage: '上一条消息',
+    senderAssistant: '助手',
+    senderUser: '你',
   },
 
   newAgent: '新建助手',