diff --git a/src/api/request.ts b/src/api/request.ts
index 3b5d718..bc9d1bf 100644
--- a/src/api/request.ts
+++ b/src/api/request.ts
@@ -1,7 +1,7 @@
 import { i18n } from '@/plugins/i18n'
 
 /** 请求基础 URL，默认 https://api.xtrader.vip，可通过环境变量 VITE_API_BASE_URL 覆盖 */
-const BASE_URL =
+export const BASE_URL =
   (import.meta as { env?: { VITE_API_BASE_URL?: string } }).env?.VITE_API_BASE_URL ??
   'https://api.xtrader.vip'
 
diff --git a/src/api/wallet.ts b/src/api/wallet.ts
index 4053b25..d3a6a28 100644
--- a/src/api/wallet.ts
+++ b/src/api/wallet.ts
@@ -1,4 +1,4 @@
-import { get } from './request'
+import { get, post } from './request'
 
 export interface DepositAddressData {
   address?: string
@@ -30,6 +30,17 @@ function pickAddress(d: DepositAddressData | undefined): string | undefined {
   )
 }
 
+export interface CollectDepositParams {
+  userId: number
+}
+
+export async function collectDeposit(
+  data: CollectDepositParams,
+  config?: { headers?: Record<string, string> },
+): Promise<{ code: number; msg?: string }> {
+  return post<{ code: number; msg?: string }>('/wallet/collect', data, config)
+}
+
 export async function getDepositAddress(
   params: GetDepositAddressParams,
   config?: { headers?: Record<string, string> },
diff --git a/src/components/DepositDialog.vue b/src/components/DepositDialog.vue
index 582860d..6170bef 100644
--- a/src/components/DepositDialog.vue
+++ b/src/components/DepositDialog.vue
@@ -75,15 +75,36 @@
           <div class="address-box">
             <label class="address-label">{{ t('deposit.depositAddress') }}</label>
             <div class="address-row">
-              <code class="address-code">{{ depositAddressShort }}</code>
-              <v-btn size="small" variant="tonal" @click="copyAddress">
-                {{ copied ? t('deposit.copied') : t('deposit.copy') }}
+                <code class="address-code">{{ depositAddress }}</code>
+                <v-btn size="small" variant="tonal" @click="copyAddress">
+                  {{ copied ? t('deposit.copied') : t('deposit.copy') }}
               </v-btn>
             </div>
             <div class="qr-wrap">
               <img :src="qrCodeUrl" alt="QR Code" class="qr-img" width="120" height="120" />
             </div>
           </div>
+          <div class="check-deposit-section mt-4">
+            <v-btn
+              block
+              color="primary"
+              variant="flat"
+              :loading="isPolling && checkStatus === 'checking' && nextCheckCountdown <= 0"
+              :disabled="isPolling"
+              @click="startDepositCheck"
+            >
+              {{ isPolling ? t('deposit.checking') : t('deposit.checkStatus') }}
+            </v-btn>
+            <div v-if="isPolling || checkStatus !== 'idle'" class="check-status-msg mt-2 text-center text-caption">
+              <template v-if="checkStatus === 'checking'">
+                <span v-if="nextCheckCountdown > 0">{{ t('deposit.nextCheckIn', { seconds: nextCheckCountdown }) }}</span>
+                <span v-else>{{ t('deposit.checkingNow') }}</span>
+              </template>
+              <span v-else-if="checkStatus === 'success'" class="text-success">{{ t('deposit.checkSuccess') }}</span>
+              <span v-else-if="checkStatus === 'timeout'" class="text-warning">{{ t('deposit.checkTimeout') }}</span>
+              <span v-else-if="checkStatus === 'error'" class="text-error">{{ checkMessage }}</span>
+            </div>
+          </div>
         </template>
 
         <!-- Connect Exchange：连接钱包后显示地址 -->
@@ -128,7 +149,7 @@
             <div class="address-box">
               <label class="address-label">{{ t('deposit.depositAddress') }}</label>
               <div class="address-row">
-                <code class="address-code">{{ depositAddressShort }}</code>
+                <code class="address-code">{{ depositAddress }}</code>
                 <v-btn size="small" variant="tonal" @click="copyAddress">
                   {{ copied ? t('deposit.copied') : t('deposit.copy') }}
                 </v-btn>
@@ -145,10 +166,12 @@
 </template>
 
 <script setup lang="ts">
-import { ref, computed, watch } from 'vue'
+import { ref, computed, watch, onUnmounted } from 'vue'
 import { useI18n } from 'vue-i18n'
-import { getDepositAddress } from '@/api/wallet'
+import { getDepositAddress, collectDeposit } from '@/api/wallet'
 import { useUserStore } from '@/stores/user'
+import { ethers } from 'ethers'
+import { USDC_ADDRESS_BY_CHAIN } from '@/api/pmset'
 
 const { t } = useI18n()
 const props = withDefaults(
@@ -178,10 +201,191 @@ const networks = [
   { id: 'optimism', label: 'Optimism' },
 ]
 
-const depositAddressShort = computed(() => {
-  const a = depositAddress.value
-  return a ? `${a.slice(0, 6)}...${a.slice(-4)}` : ''
-})
+const RPC_URLS: Record<string, string> = {
+  ethereum: 'https://ethereum-rpc.publicnode.com',
+  polygon: 'https://polygon-bor-rpc.publicnode.com',
+  arbitrum: 'https://arbitrum-one-rpc.publicnode.com',
+  optimism: 'https://optimism-rpc.publicnode.com',
+}
+
+const CHAIN_IDS: Record<string, number> = {
+  ethereum: 1,
+  polygon: 137,
+  arbitrum: 42161,
+  optimism: 10,
+}
+
+const isPolling = ref(false)
+const checkStatus = ref<'idle' | 'checking' | 'success' | 'timeout' | 'error'>('idle')
+const checkMessage = ref('')
+const nextCheckTime = ref(0)
+let pollTimer: ReturnType<typeof setTimeout> | null = null
+let countdownTimer: ReturnType<typeof setInterval> | null = null
+const POLL_INTERVAL = 60000 // 60 seconds
+const MAX_POLL_TIME = 30 * 60 * 1000 // 30 minutes
+let initialBalance = BigInt(0)
+let startTime = 0
+
+const nextCheckCountdown = ref(0)
+
+function stopDepositCheck() {
+  isPolling.value = false
+  if (pollTimer) {
+    clearTimeout(pollTimer)
+    pollTimer = null
+  }
+  if (countdownTimer) {
+    clearInterval(countdownTimer)
+    countdownTimer = null
+  }
+  checkStatus.value = 'idle'
+  checkMessage.value = ''
+}
+
+async function startDepositCheck() {
+  if (!depositAddress.value || !selectedNetwork.value) return
+  
+  stopDepositCheck()
+  isPolling.value = true
+  checkStatus.value = 'checking'
+  checkMessage.value = t('deposit.checkingStatus')
+  startTime = Date.now()
+  initialBalance = BigInt(0) // Reset initial balance assumption or fetch it first?
+  // We should probably fetch initial balance first, but for now assuming user deposits > 0 into a fresh-ish account or just checking for > 0 if it's a unique deposit address.
+  // Ideally we check current balance and see if it increases.
+  // For simplicity based on prompt "check for balance change", let's fetch current first.
+  
+  await checkBalance(true)
+}
+
+async function checkBalance(isFirst = false) {
+  if (!isPolling.value) return
+
+  try {
+    const rpcUrl = RPC_URLS[selectedNetwork.value]
+    const usdcAddr = USDC_ADDRESS_BY_CHAIN[selectedNetwork.value]
+    
+    if (!rpcUrl || !usdcAddr) {
+      checkStatus.value = 'error'
+      checkMessage.value = 'Network configuration error'
+      isPolling.value = false
+      return
+    }
+
+    const provider = new ethers.JsonRpcProvider(rpcUrl, CHAIN_IDS[selectedNetwork.value], {
+      staticNetwork: true,
+    })
+
+    let targetAddr = depositAddress.value
+    try {
+      targetAddr = ethers.getAddress(targetAddr)
+    } catch (e) {
+      console.warn('Invalid address format', targetAddr)
+    }
+
+    // Prepare contract calls
+    // For Polygon, check both Bridged USDC (USDC.e) and Native USDC
+    const contractsToCheck: string[] = [usdcAddr]
+    if (selectedNetwork.value === 'polygon') {
+      // Add Polygon Native USDC
+      contractsToCheck.push('0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359')
+    }
+
+    let totalBalance = BigInt(0)
+
+    for (const addr of contractsToCheck) {
+      try {
+        const contract = new ethers.Contract(addr, ['function balanceOf(address) view returns (uint256)'], provider)
+        const bal = await contract.balanceOf(targetAddr)
+        totalBalance += bal
+      } catch (err) {
+        console.warn(`Failed to check balance for token ${addr}`, err)
+      }
+    }
+    
+    const balance = totalBalance
+    
+    if (isFirst) {
+      initialBalance = balance
+      // If first check, we just record baseline.
+      // Wait, if user already deposited before clicking check?
+      // If balance > 0 on first check, maybe we should just try to collect?
+      // Let's assume if balance > 0 we try to collect.
+      if (balance > BigInt(0)) {
+         await triggerCollect()
+         return
+      }
+    } else {
+      if (balance > initialBalance || (initialBalance === BigInt(0) && balance > BigInt(0))) {
+        await triggerCollect()
+        return
+      }
+    }
+
+    // Continue polling
+    if (Date.now() - startTime > MAX_POLL_TIME) {
+      checkStatus.value = 'timeout'
+      isPolling.value = false
+      return
+    }
+
+    scheduleNextPoll()
+    
+  } catch (e) {
+    console.error('Balance check failed:', e)
+    // Don't stop polling on transient error, just retry
+    scheduleNextPoll()
+  }
+}
+
+async function triggerCollect() {
+  try {
+    const uid = userStore.user?.id ?? userStore.user?.ID
+    if (!uid) throw new Error('User not logged in')
+    
+    const res = await collectDeposit({ userId: Number(uid) }, { headers: userStore.getAuthHeaders() || {} })
+    if (res.code === 0 || res.code === 200) {
+      checkStatus.value = 'success'
+      isPolling.value = false
+      // Optionally refresh balance
+      userStore.fetchUsdcBalance()
+    } else {
+      // If collection failed but balance is there, maybe retry or show error?
+      // Show error but keep polling? No, better stop to avoid spamming if backend is broken.
+      checkStatus.value = 'error'
+      checkMessage.value = res.msg || 'Collection failed'
+      isPolling.value = false
+    }
+  } catch (e) {
+    console.error('Collect request error:', e)
+    checkStatus.value = 'error'
+    checkMessage.value = e instanceof Error ? e.message : 'Collection request failed'
+    isPolling.value = false
+  }
+}
+
+function scheduleNextPoll() {
+  if (!isPolling.value) return
+  
+  nextCheckTime.value = Date.now() + POLL_INTERVAL
+  checkStatus.value = 'checking' // Waiting
+  
+  if (countdownTimer) clearInterval(countdownTimer)
+  updateCountdown()
+  countdownTimer = setInterval(updateCountdown, 1000)
+
+  pollTimer = setTimeout(() => {
+    checkBalance()
+  }, POLL_INTERVAL)
+}
+
+function updateCountdown() {
+  const diff = Math.max(0, Math.ceil((nextCheckTime.value - Date.now()) / 1000))
+  nextCheckCountdown.value = diff
+  if (diff <= 0 && countdownTimer) {
+    clearInterval(countdownTimer)
+  }
+}
 
 const qrCodeUrl = computed(() => {
   return `https://api.qrserver.com/v1/create-qr-code/?size=120x120&data=${encodeURIComponent(depositAddress.value)}`
@@ -268,6 +472,7 @@ watch(
       depositAddress.value = ''
       loadError.value = ''
       loading.value = false
+      stopDepositCheck()
     } else {
       if (step.value === 'crypto') fetchAddress()
     }
@@ -277,6 +482,10 @@ watch(
 watch(selectedNetwork, () => {
   if (step.value === 'crypto') fetchAddress()
 })
+
+onUnmounted(() => {
+  stopDepositCheck()
+})
 </script>
 
 <style scoped>
@@ -408,6 +617,7 @@ watch(selectedNetwork, () => {
   border-radius: 8px;
   flex: 1;
   min-width: 0;
+  word-break: break-all;
 }
 .qr-wrap {
   margin-top: 16px;
diff --git a/src/locales/en.json b/src/locales/en.json
index fbf7378..2f04913 100644
--- a/src/locales/en.json
+++ b/src/locales/en.json
@@ -204,7 +204,15 @@
     "coinbaseComingSoon": "Coinbase Wallet (Coming soon)",
     "walletConnectComingSoon": "WalletConnect (Coming soon)",
     "close": "Close",
-    "installMetaMask": "Please install MetaMask or another Web3 wallet."
+    "installMetaMask": "Please install MetaMask or another Web3 wallet.",
+    "checkStatus": "Check Deposit Status",
+    "checking": "Checking...",
+    "checkingStatus": "Checking deposit status...",
+    "nextCheckIn": "Next check in: {seconds}s",
+    "checkingNow": "Checking now...",
+    "checkSuccess": "Deposit detected! Processing...",
+    "checkTimeout": "No deposit detected. Please try again later.",
+    "checkError": "Check failed"
   },
   "withdraw": {
     "title": "Withdraw",
diff --git a/src/locales/zh-CN.json b/src/locales/zh-CN.json
index 554a05a..1462779 100644
--- a/src/locales/zh-CN.json
+++ b/src/locales/zh-CN.json
@@ -204,7 +204,15 @@
     "coinbaseComingSoon": "Coinbase Wallet（即将推出）",
     "walletConnectComingSoon": "WalletConnect（即将推出）",
     "close": "关闭",
-    "installMetaMask": "请安装 MetaMask 或其他 Web3 钱包。"
+    "installMetaMask": "请安装 MetaMask 或其他 Web3 钱包。",
+    "checkStatus": "检查充值状态",
+    "checking": "正在检测...",
+    "checkingStatus": "正在检测充值状态...",
+    "nextCheckIn": "下次检测: {seconds}秒",
+    "checkingNow": "正在检测...",
+    "checkSuccess": "检测到充值！已提交处理。",
+    "checkTimeout": "未检测到充值。请稍候再试。",
+    "checkError": "检测失败"
   },
   "withdraw": {
     "title": "提现",
diff --git a/src/stores/user.ts b/src/stores/user.ts
index cb5e739..75e71ac 100644
--- a/src/stores/user.ts
+++ b/src/stores/user.ts
@@ -1,7 +1,7 @@
 import { ref, computed } from 'vue'
 import { defineStore } from 'pinia'
 import { getUsdcBalance, formatUsdcBalance, getUserInfo } from '@/api/user'
-import { getUserWsUrl } from '@/api/request'
+import { getUserWsUrl, BASE_URL } from '@/api/request'
 import { UserSdk, type BalanceData, type PositionData } from '../../sdk/userSocket'
 
 export interface UserInfo {
@@ -63,7 +63,15 @@ export const useUserStore = defineStore('user', () => {
   const user = ref<UserInfo | null>(stored?.user ?? null)
 
   const isLoggedIn = computed(() => !!token.value && !!user.value)
-  const avatarUrl = computed(() => user.value?.headerImg ?? '')
+  const avatarUrl = computed(() => {
+    const img = user.value?.headerImg
+    if (!img) return ''
+    if (img.startsWith('http') || img.startsWith('data:')) return img
+    // 处理相对路径，拼接 BASE_URL
+    const baseUrl = BASE_URL.endsWith('/') ? BASE_URL.slice(0, -1) : BASE_URL
+    const path = img.startsWith('/') ? img : `/${img}`
+    return `${baseUrl}${path}`
+  })
   /** 钱包余额显示，如 "0.00"，可从接口或 UserSocket 推送更新 */
   const balance = ref<string>('0.00')