diff --git a/README.md b/README.md
index d01fe14..a3a4c72 100755
--- a/README.md
+++ b/README.md
@@ -55,6 +55,20 @@ In PumpSwap, Bonk, and Raydium CPMM trading, the `auto_handle_wsol` parameter is
   - When selling: automatically unwraps the received wSOL to SOL
   - Default value is `true`
 
+#### lookup_table_key Parameter
+
+The `lookup_table_key` parameter is an optional `Pubkey` that specifies an address lookup table for transaction optimization:
+
+- **Purpose**: Address lookup tables can reduce transaction size and improve execution speed by storing frequently used addresses
+- **Usage**: 
+  - Can be set globally in `TradeConfig` for all transactions
+  - Can be overridden per transaction in `buy()` and `sell()` methods
+  - If not provided, defaults to `None`
+- **Benefits**:
+  - Reduces transaction size by referencing addresses from lookup tables
+  - Improves transaction success rate and speed
+  - Particularly useful for complex transactions with many account references
+
 ### 1. Event Subscription - Monitor Token Trading
 
 #### 1.1 Subscribe to Events Using Yellowstone gRPC
@@ -344,6 +358,7 @@ async fn test_pumpfun_sniper_trade_with_shreds(trade_info: PumpFunTradeEvent) ->
         Some(Box::new(PumpFunParams {
             bonding_curve: Some(Arc::new(bonding_curve.clone())),
         })),
+        None,
     )
     .await?;
 
@@ -380,6 +395,7 @@ async fn test_pumpfun_copy_trade_with_grpc(trade_info: PumpFunTradeEvent) -> Any
         Some(Box::new(PumpFunParams {
             bonding_curve: Some(Arc::new(bonding_curve.clone())),
         })),
+        None,
     )
     .await?;
 
@@ -399,6 +415,7 @@ async fn test_pumpfun_sell() -> AnyResult<()> {
         None,
         false,
         None,
+        None,
     )
     .await?;
 }
@@ -442,6 +459,7 @@ async fn test_pumpswap() -> AnyResult<()> {
             pool_quote_token_reserves: Some(pool_quote_token_reserves),
             auto_handle_wsol: true,
         })),
+        None,
     ).await?;
 
     // Sell tokens
@@ -464,6 +482,7 @@ async fn test_pumpswap() -> AnyResult<()> {
             pool_quote_token_reserves: Some(pool_quote_token_reserves),
             auto_handle_wsol: true,
         })),
+        None,
     ).await?;
 
     Ok(())
@@ -513,6 +532,7 @@ async fn test_raydium_cpmm() -> Result<(), Box<dyn std::error::Error>> {
             minimum_amount_out: Some(buy_amount_out), // If not provided, defaults to 0
             auto_handle_wsol: true, // Automatically handle wSOL wrapping/unwrapping
         })),
+        None,
     ).await?;
 
     println!("Selling tokens from Raydium CPMM...");
@@ -535,6 +555,7 @@ async fn test_raydium_cpmm() -> Result<(), Box<dyn std::error::Error>> {
             minimum_amount_out: Some(sell_sol_amount), // If not provided, defaults to 0
             auto_handle_wsol: true, // Automatically handle wSOL wrapping/unwrapping
         })),
+        None,
     ).await?;
 
     Ok(())
@@ -571,6 +592,7 @@ async fn test_bonk_sniper_trade_with_shreds(trade_info: BonkTradeEvent) -> AnyRe
         recent_blockhash,
         None,
         Some(Box::new(BonkParams::from_dev_trade(trade_info))),
+        None,
     ).await?;
 
     println!("Selling tokens from letsbonk.fun...");
@@ -585,6 +607,7 @@ async fn test_bonk_sniper_trade_with_shreds(trade_info: BonkTradeEvent) -> AnyRe
         None,
         false,
         None,
+        None,
     ).await?;
 
     Ok(())
@@ -612,6 +635,7 @@ async fn test_bonk_copy_trade_with_grpc(trade_info: BonkTradeEvent) -> AnyResult
         recent_blockhash,
         None,
         Some(Box::new(BonkParams::from_trade(trade_info))),
+        None,
     ).await?;
 
     println!("Selling tokens from letsbonk.fun...");
@@ -626,6 +650,7 @@ async fn test_bonk_copy_trade_with_grpc(trade_info: BonkTradeEvent) -> AnyResult
         None,
         false,
         None,
+        None,
     ).await?;
 
     Ok(())
@@ -653,6 +678,7 @@ async fn test_bonk() -> Result<(), Box<dyn std::error::Error>> {
         recent_blockhash,
         None,
         None,
+        None,
     )
     .await?;
     
@@ -669,6 +695,7 @@ async fn test_bonk() -> Result<(), Box<dyn std::error::Error>> {
         None,
         false,
         None,
+        None,
     )
     .await?;
 
diff --git a/README_CN.md b/README_CN.md
index 65ea322..a01d8f4 100755
--- a/README_CN.md
+++ b/README_CN.md
@@ -55,6 +55,20 @@ sol-trade-sdk = "0.3.4"
   - 卖出时：自动将获得的 wSOL 解包装为 SOL
   - 默认值为 `true`
 
+#### lookup_table_key 参数
+
+`lookup_table_key` 参数是一个可选的 `Pubkey`，用于指定地址查找表以优化交易：
+
+- **用途**：地址查找表可以通过存储常用地址来减少交易大小并提高执行速度
+- **使用方法**：
+  - 可以在 `TradeConfig` 中全局设置，用于所有交易
+  - 可以在 `buy()` 和 `sell()` 方法中按交易覆盖
+  - 如果不提供，默认为 `None`
+- **优势**：
+  - 通过从查找表引用地址来减少交易大小
+  - 提高交易成功率和速度
+  - 特别适用于具有许多账户引用的复杂交易
+
 ### 1. 事件订阅 - 监听代币交易
 
 #### 1.1 使用 Yellowstone gRPC 订阅事件
@@ -344,6 +358,7 @@ async fn test_pumpfun_sniper_trade_with_shreds(trade_info: PumpFunTradeEvent) ->
         Some(Box::new(PumpFunParams {
             bonding_curve: Some(Arc::new(bonding_curve.clone())),
         })),
+        None,
     )
     .await?;
 
@@ -379,6 +394,7 @@ async fn test_pumpfun_copy_trade_with_grpc(trade_info: PumpFunTradeEvent) -> Any
         Some(Box::new(PumpFunParams {
             bonding_curve: Some(Arc::new(bonding_curve.clone())),
         })),
+        None,
     )
     .await?;
 
@@ -396,6 +412,8 @@ async fn test_pumpfun_sell() -> AnyResult<()> {
         slippage_basis_points,
         recent_blockhash,
         None,
+        false,
+        None,
         None,
     )
     .await?;
@@ -440,6 +458,7 @@ async fn test_pumpswap() -> AnyResult<()> {
             pool_quote_token_reserves: Some(pool_quote_token_reserves),
             auto_handle_wsol: true,
         })),
+        None,
     ).await?;
 
     // 卖出代币
@@ -462,6 +481,7 @@ async fn test_pumpswap() -> AnyResult<()> {
             pool_quote_token_reserves: Some(pool_quote_token_reserves),
             auto_handle_wsol: true,
         })),
+        None,
     ).await?;
 
     Ok(())
@@ -511,6 +531,7 @@ async fn test_raydium_cpmm() -> Result<(), Box<dyn std::error::Error>> {
             minimum_amount_out: Some(buy_amount_out), // 如果不传，默认为0
             auto_handle_wsol: true, // 自动处理 wSOL 包装/解包装
         })),
+        None,
     ).await?;
 
     println!("Selling tokens from Raydium CPMM...");
@@ -533,6 +554,7 @@ async fn test_raydium_cpmm() -> Result<(), Box<dyn std::error::Error>> {
             minimum_amount_out: Some(sell_sol_amount), // 如果不传，默认为0
             auto_handle_wsol: true, // 自动处理 wSOL 包装/解包装
         })),
+        None,
     ).await?;
 
     Ok(())
@@ -569,6 +591,7 @@ async fn test_bonk_sniper_trade_with_shreds(trade_info: BonkTradeEvent) -> AnyRe
         recent_blockhash,
         None,
         Some(Box::new(BonkParams::from_dev_trade(trade_info))),
+        None,
     ).await?;
 
     println!("Selling tokens from letsbonk.fun...");
@@ -583,6 +606,7 @@ async fn test_bonk_sniper_trade_with_shreds(trade_info: BonkTradeEvent) -> AnyRe
         None,
         false,
         None,
+        None,
     ).await?;
 
     Ok(())
@@ -610,6 +634,7 @@ async fn test_bonk_copy_trade_with_grpc(trade_info: BonkTradeEvent) -> AnyResult
         recent_blockhash,
         None,
         Some(Box::new(BonkParams::from_trade(trade_info))),
+        None,
     ).await?;
 
     println!("Selling tokens from letsbonk.fun...");
@@ -624,6 +649,7 @@ async fn test_bonk_copy_trade_with_grpc(trade_info: BonkTradeEvent) -> AnyResult
         None,
         false,
         None,
+        None,
     ).await?;
 
     Ok(())
@@ -651,6 +677,7 @@ async fn test_bonk() -> Result<(), Box<dyn std::error::Error>> {
         recent_blockhash,
         None,
         None,
+        None,
     )
     .await?;
     
@@ -667,6 +694,7 @@ async fn test_bonk() -> Result<(), Box<dyn std::error::Error>> {
         None,
         false,
         None,
+        None,
     )
     .await?;
 
diff --git a/src/lib.rs b/src/lib.rs
index 6c71e18..b9c7be0 100755
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -128,6 +128,7 @@ impl SolanaTrade {
     /// * `recent_blockhash` - Recent blockhash for transaction validity
     /// * `custom_buy_tip_fee` - Optional custom tip fee for priority processing (in SOL)
     /// * `extension_params` - Optional protocol-specific parameters (uses defaults if None)
+    /// * `lookup_table_key` - Optional address lookup table key for transaction optimization
     ///
     /// # Returns
     ///
@@ -162,6 +163,7 @@ impl SolanaTrade {
     ///     recent_blockhash,
     ///     None,
     ///     None,
+    ///     Some(lookup_table_pubkey),
     /// ).await?;
     /// ```
     pub async fn buy(
@@ -174,6 +176,7 @@ impl SolanaTrade {
         recent_blockhash: Hash,
         custom_buy_tip_fee: Option<f64>,
         extension_params: Option<Box<dyn ProtocolParams>>,
+        lookup_table_key: Option<Pubkey>,
     ) -> Result<(), anyhow::Error> {
         let executor = TradeFactory::create_executor(dex_type.clone());
         let protocol_params = if let Some(params) = extension_params {
@@ -188,6 +191,9 @@ impl SolanaTrade {
                 }
             }
         };
+        
+        let final_lookup_table_key = lookup_table_key.or(self.trade_config.lookup_table_key);
+        
         let buy_params = BuyParams {
             rpc: Some(self.rpc.clone()),
             payer: self.payer.clone(),
@@ -196,7 +202,7 @@ impl SolanaTrade {
             sol_amount: sol_amount,
             slippage_basis_points: slippage_basis_points,
             priority_fee: self.trade_config.priority_fee.clone(),
-            lookup_table_key: self.trade_config.lookup_table_key,
+            lookup_table_key: final_lookup_table_key,
             recent_blockhash,
             data_size_limit: 0,
             protocol_params: protocol_params.clone(),
@@ -252,6 +258,7 @@ impl SolanaTrade {
     /// * `custom_buy_tip_fee` - Optional custom tip fee for priority processing (in SOL)
     /// * `with_tip` - Optional boolean to indicate if the transaction should be sent with tip
     /// * `extension_params` - Optional protocol-specific parameters (uses defaults if None)
+    /// * `lookup_table_key` - Optional address lookup table key for transaction optimization
     ///
     /// # Returns
     ///
@@ -288,6 +295,7 @@ impl SolanaTrade {
     ///     None,
     ///     false,
     ///     None,
+    ///     Some(lookup_table_pubkey),
     /// ).await?;
     /// ```
     pub async fn sell(
@@ -301,6 +309,7 @@ impl SolanaTrade {
         custom_buy_tip_fee: Option<f64>,
         with_tip: bool,
         extension_params: Option<Box<dyn ProtocolParams>>,
+        lookup_table_key: Option<Pubkey>,
     ) -> Result<(), anyhow::Error> {
         let executor = TradeFactory::create_executor(dex_type.clone());
         let protocol_params = if let Some(params) = extension_params {
@@ -315,6 +324,9 @@ impl SolanaTrade {
                 }
             }
         };
+        
+        let final_lookup_table_key = lookup_table_key.or(self.trade_config.lookup_table_key);
+        
         let sell_params = SellParams {
             rpc: Some(self.rpc.clone()),
             payer: self.payer.clone(),
@@ -323,7 +335,7 @@ impl SolanaTrade {
             token_amount: Some(token_amount),
             slippage_basis_points: slippage_basis_points,
             priority_fee: self.trade_config.priority_fee.clone(),
-            lookup_table_key: self.trade_config.lookup_table_key,
+            lookup_table_key: final_lookup_table_key,
             recent_blockhash,
             protocol_params: protocol_params.clone(),
         };
@@ -385,7 +397,9 @@ impl SolanaTrade {
     /// * `slippage_basis_points` - Optional slippage tolerance in basis points (e.g., 100 = 1%)
     /// * `recent_blockhash` - Recent blockhash for transaction validity
     /// * `custom_buy_tip_fee` - Optional custom tip fee for priority processing (in SOL)
+    /// * `with_tip` - Whether to use tip for priority processing
     /// * `extension_params` - Optional protocol-specific parameters (uses defaults if None)
+    /// * `lookup_table_key` - Optional lookup table key for address lookup optimization
     ///
     /// # Returns
     ///
@@ -424,6 +438,8 @@ impl SolanaTrade {
     ///     slippage,
     ///     recent_blockhash,
     ///     None,
+    ///     false,
+    ///     None,
     ///     None,
     /// ).await?;
     /// ```
@@ -439,6 +455,7 @@ impl SolanaTrade {
         custom_buy_tip_fee: Option<f64>,
         with_tip: bool,
         extension_params: Option<Box<dyn ProtocolParams>>,
+        lookup_table_key: Option<Pubkey>,
     ) -> Result<(), anyhow::Error> {
         if percent == 0 || percent > 100 {
             return Err(anyhow::anyhow!("Percentage must be between 1 and 100"));
@@ -454,6 +471,7 @@ impl SolanaTrade {
             custom_buy_tip_fee,
             with_tip,
             extension_params,
+            lookup_table_key,
         )
         .await
     }
diff --git a/src/main.rs b/src/main.rs
index 801b0dc..f270a89 100755
--- a/src/main.rs
+++ b/src/main.rs
@@ -98,6 +98,7 @@ async fn test_pumpfun_copy_trade_with_grpc(trade_info: PumpFunTradeEvent) -> Any
         Some(Box::new(PumpFunParams {
             bonding_curve: Some(Arc::new(bonding_curve.clone())),
         })),
+        None,
     ).await?;
 
     // Sell tokens  
@@ -113,6 +114,7 @@ async fn test_pumpfun_copy_trade_with_grpc(trade_info: PumpFunTradeEvent) -> Any
         None,
         false,
         None,
+        None,
     ).await?;
 
     Ok(())
@@ -152,6 +154,7 @@ async fn test_pumpfun_sniper_trade_with_shreds(trade_info: PumpFunTradeEvent) ->
         Some(Box::new(PumpFunParams {
             bonding_curve: Some(Arc::new(bonding_curve.clone())),
         })),
+        None,
     ).await?;
 
     // Sell tokens
@@ -167,6 +170,7 @@ async fn test_pumpfun_sniper_trade_with_shreds(trade_info: PumpFunTradeEvent) ->
         None,
         false,
         None,
+        None,
     ).await?;
 
     Ok(())
@@ -205,6 +209,7 @@ async fn test_pumpswap() -> AnyResult<()> {
             pool_quote_token_reserves: Some(pool_quote_token_reserves),
             auto_handle_wsol: true,
         })),
+        None,
     ).await?;
 
     // Sell tokens
@@ -227,6 +232,7 @@ async fn test_pumpswap() -> AnyResult<()> {
             pool_quote_token_reserves: Some(pool_quote_token_reserves),
             auto_handle_wsol: true,
         })),
+        None,
     ).await?;
 
     Ok(())
@@ -254,6 +260,7 @@ async fn test_bonk_copy_trade_with_grpc(trade_info: BonkTradeEvent) -> AnyResult
         recent_blockhash,
         None,
         Some(Box::new(BonkParams::from_trade(trade_info))),
+        None,
     ).await?;
 
     // Sell tokens
@@ -269,6 +276,7 @@ async fn test_bonk_copy_trade_with_grpc(trade_info: BonkTradeEvent) -> AnyResult
         None,
         false,
         None,
+        None,
     ).await?;
 
     Ok(())
@@ -298,6 +306,7 @@ async fn test_bonk_sniper_trade_with_shreds(trade_info: BonkTradeEvent) -> AnyRe
         recent_blockhash,
         None,
         Some(Box::new(BonkParams::from_dev_trade(trade_info))),
+        None,
     ).await?;
 
     // Sell tokens
@@ -313,6 +322,7 @@ async fn test_bonk_sniper_trade_with_shreds(trade_info: BonkTradeEvent) -> AnyRe
         None,
         false,
         None,
+        None,
     ).await?;
 
     Ok(())
@@ -339,6 +349,7 @@ async fn test_bonk() -> Result<(), Box<dyn std::error::Error>> {
         recent_blockhash,
         None,
         None,
+        None,
     ).await?;
 
     // Sell tokens
@@ -354,6 +365,7 @@ async fn test_bonk() -> Result<(), Box<dyn std::error::Error>> {
         None,
         false,
         None,
+        None,
     ).await?;
 
     Ok(())
@@ -387,6 +399,7 @@ async fn test_raydium_cpmm() -> Result<(), Box<dyn std::error::Error>> {
             minimum_amount_out: Some(buy_amount_out), // 如果不传、默认为0
             auto_handle_wsol: true,
         })),
+        None,
     ).await?;
 
     // Sell tokens
@@ -409,6 +422,7 @@ async fn test_raydium_cpmm() -> Result<(), Box<dyn std::error::Error>> {
             minimum_amount_out: Some(sell_sol_amount), // 如果不传、默认为0
             auto_handle_wsol: true,
         })),
+        None,
     ).await?;
 
     Ok(())