diff --git a/backend/services/docker-compose.2.0.yml b/backend/services/docker-compose.2.0.yml
index fe41ae27..a41f3438 100644
--- a/backend/services/docker-compose.2.0.yml
+++ b/backend/services/docker-compose.2.0.yml
@@ -279,12 +279,12 @@ services:
       BSC_RPC_URL: ${BSC_RPC_URL:-https://bsc-dataseed.binance.org}
       BSC_CHAIN_ID: ${BSC_CHAIN_ID:-56}
       BSC_USDT_CONTRACT: ${BSC_USDT_CONTRACT:-0x55d398326f99059fF775485246999027B3197955}
-      # 热钱包配置 (MPC)
+      # C2C Bot 热钱包 (MPC)
       HOT_WALLET_USERNAME: ${HOT_WALLET_USERNAME:-}
       HOT_WALLET_ADDRESS: ${HOT_WALLET_ADDRESS:-}
-      # 做市商 MPC 钱包配置（必须配置，否则充值监控不生效）
-      MARKET_MAKER_WALLET_ADDRESS: ${MARKET_MAKER_WALLET_ADDRESS:-}
+      # 做市商钱包 (MPC) - 用于 eUSDT/fUSDT 转账
       MARKET_MAKER_MPC_USERNAME: ${MARKET_MAKER_MPC_USERNAME:-}
+      MARKET_MAKER_WALLET_ADDRESS: ${MARKET_MAKER_WALLET_ADDRESS:-}
       # 区块扫描配置
       BLOCK_SCAN_INTERVAL_MS: ${BLOCK_SCAN_INTERVAL_MS:-5000}
       BLOCK_CONFIRMATIONS_REQUIRED: ${BLOCK_CONFIRMATIONS_REQUIRED:-12}
diff --git a/backend/services/mining-blockchain-service/.env.example b/backend/services/mining-blockchain-service/.env.example
index 1f28385e..c80c9f5c 100644
--- a/backend/services/mining-blockchain-service/.env.example
+++ b/backend/services/mining-blockchain-service/.env.example
@@ -77,16 +77,14 @@ HOT_WALLET_USERNAME=c2c-bot-wallet
 HOT_WALLET_ADDRESS=
 
 # =============================================================================
-# 做市商 MPC 钱包（用于充值监控和提现转账）
+# 做市商 MPC 钱包（用于 eUSDT/fUSDT 转账）
 # =============================================================================
-# 做市商钱包地址（用于监控充值）
-# 必须配置，否则做市商充值监控功能不可用
-MARKET_MAKER_WALLET_ADDRESS=
-
-# 做市商 MPC 用户名（用于签名提现交易）
-# 必须配置，否则做市商提现功能不可用
+# 做市商 MPC 用户名（用于签名转账交易）
 MARKET_MAKER_MPC_USERNAME=
 
+# 做市商钱包地址（EVM 地址）
+MARKET_MAKER_WALLET_ADDRESS=
+
 # =============================================================================
 # 区块扫描配置
 # =============================================================================