diff --git a/src/lib/bridge/adapters/telegram-adapter.ts b/src/lib/bridge/adapters/telegram-adapter.ts
index 173220b5..e8b2b30c 100644
--- a/src/lib/bridge/adapters/telegram-adapter.ts
+++ b/src/lib/bridge/adapters/telegram-adapter.ts
@@ -15,7 +15,7 @@ import type {
 } from '../types';
 import type { FileAttachment } from '@/types';
 import { BaseChannelAdapter, registerAdapterFactory } from '../channel-adapter';
-import { callTelegramApi, sendMessageDraft } from './telegram-utils';
+import { callTelegramApi, sendMessageDraft, proxyFetch, getProxyUrl } from './telegram-utils';
 import {
   isImageEnabled,
   downloadPhoto,
@@ -103,6 +103,14 @@ export class TelegramAdapter extends BaseChannelAdapter {
       return;
     }
 
+    // Log proxy configuration
+    const proxyUrl = getProxyUrl();
+    if (proxyUrl) {
+      console.log('[telegram-adapter] Using proxy:', proxyUrl.replace(/:.*@/, ':***@'));
+    } else {
+      console.log('[telegram-adapter] No proxy configured, using direct connection');
+    }
+
     // Resolve bot identity via getMe before starting the poll loop.
     // This provides a stable offset key that survives token rotation.
     await this.resolveBotIdentity();
@@ -391,7 +399,7 @@ export class TelegramAdapter extends BaseChannelAdapter {
 
     try {
       const url = `${TELEGRAM_API}/bot${token}/getMe`;
-      const res = await fetch(url, {
+      const res = await proxyFetch(url, {
         method: 'GET',
         signal: AbortSignal.timeout(10_000),
       });
@@ -475,7 +483,7 @@ export class TelegramAdapter extends BaseChannelAdapter {
         }
 
         const url = `${TELEGRAM_API}/bot${token}/getUpdates`;
-        const res = await fetch(url, {
+        const res = await proxyFetch(url, {
           method: 'POST',
           headers: { 'Content-Type': 'application/json' },
           body: JSON.stringify({
diff --git a/src/lib/bridge/adapters/telegram-media.ts b/src/lib/bridge/adapters/telegram-media.ts
index f8efda8d..e354c07b 100644
--- a/src/lib/bridge/adapters/telegram-media.ts
+++ b/src/lib/bridge/adapters/telegram-media.ts
@@ -8,6 +8,7 @@
 
 import type { FileAttachment } from '@/types';
 import { getSetting } from '../../db';
+import { proxyFetch } from './telegram-utils';
 
 const TELEGRAM_API = 'https://api.telegram.org';
 
@@ -201,7 +202,7 @@ async function downloadFileById(
     try {
       // Step 1: Get file path from Telegram
       const getFileUrl = `${TELEGRAM_API}/bot${botToken}/getFile`;
-      const getFileRes = await fetch(getFileUrl, {
+      const getFileRes = await proxyFetch(getFileUrl, {
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
         body: JSON.stringify({ file_id: fileId }),
@@ -229,7 +230,7 @@ async function downloadFileById(
 
       // Step 2: Download the file
       const downloadUrl = `${TELEGRAM_API}/file/bot${botToken}/${filePath}`;
-      const downloadRes = await fetch(downloadUrl, {
+      const downloadRes = await proxyFetch(downloadUrl, {
         signal: AbortSignal.timeout(60_000),
       });
 
diff --git a/src/lib/bridge/adapters/telegram-utils.ts b/src/lib/bridge/adapters/telegram-utils.ts
index 8f180abe..ffa3edbd 100644
--- a/src/lib/bridge/adapters/telegram-utils.ts
+++ b/src/lib/bridge/adapters/telegram-utils.ts
@@ -5,8 +5,32 @@
  * Extracted from telegram-bot.ts to avoid duplication.
  */
 
+import { ProxyAgent } from 'undici';
+
 const TELEGRAM_API = 'https://api.telegram.org';
 
+/**
+ * Get proxy URL from environment variables.
+ * Supports HTTP_PROXY, HTTPS_PROXY, and ALL_PROXY.
+ */
+export function getProxyUrl(): string | undefined {
+  return process.env.HTTPS_PROXY || process.env.HTTP_PROXY || process.env.ALL_PROXY;
+}
+
+/**
+ * Proxy-enabled fetch for Telegram API calls.
+ * Falls back to native fetch if no proxy is configured.
+ */
+export async function proxyFetch(url: string | URL, init?: RequestInit): Promise<Response> {
+  const proxyUrl = getProxyUrl();
+  if (proxyUrl) {
+    const dispatcher = new ProxyAgent(proxyUrl);
+    // @ts-expect-error - dispatcher is an undici-specific extension not in standard fetch types
+    return fetch(url, { ...init, dispatcher });
+  }
+  return fetch(url, init);
+}
+
 export interface TelegramSendResult {
   ok: boolean;
   messageId?: string;
@@ -41,7 +65,7 @@ export async function callTelegramApi(
 ): Promise<TelegramSendResult> {
   try {
     const url = `${TELEGRAM_API}/bot${botToken}/${method}`;
-    const res = await fetch(url, {
+    const res = await proxyFetch(url, {
       method: 'POST',
       headers: { 'Content-Type': 'application/json' },
       body: JSON.stringify(params),
diff --git a/src/lib/telegram-bot.ts b/src/lib/telegram-bot.ts
index c50e36f0..59d7c733 100644
--- a/src/lib/telegram-bot.ts
+++ b/src/lib/telegram-bot.ts
@@ -21,6 +21,7 @@ import {
   escapeHtml,
   splitMessage,
   formatSessionHeader,
+  proxyFetch,
 } from './bridge/adapters/telegram-utils';
 
 // ── Types ──────────────────────────────────────────────────────
@@ -279,7 +280,7 @@ export async function verifyBot(
 ): Promise<{ ok: boolean; botName?: string; error?: string }> {
   try {
     const url = `${TELEGRAM_API}/bot${botToken}/getMe`;
-    const res = await fetch(url);
+    const res = await proxyFetch(url);
     const data: TelegramBotInfo = await res.json();
 
     if (!data.ok || !data.result) {
@@ -317,7 +318,7 @@ export async function detectChatId(
   try {
     // Try getUpdates first (works when polling hasn't consumed the message)
     const url = `${TELEGRAM_API}/bot${botToken}/getUpdates`;
-    const res = await fetch(url, {
+    const res = await proxyFetch(url, {
       method: 'POST',
       headers: { 'Content-Type': 'application/json' },
       body: JSON.stringify({ limit: 100, timeout: 0, allowed_updates: ['message'] }),
@@ -493,7 +494,7 @@ async function pollLoop(botToken: string, chatId: string, state: PollerState): P
   while (state.running) {
     try {
       const url = `${TELEGRAM_API}/bot${botToken}/getUpdates`;
-      const res = await fetch(url, {
+      const res = await proxyFetch(url, {
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
         body: JSON.stringify({