diff --git a/docs/en/docs/trade/order/history_orders.md b/docs/en/docs/trade/order/history_orders.md
index 652c2551..b19bdbd5 100644
--- a/docs/en/docs/trade/order/history_orders.md
+++ b/docs/en/docs/trade/order/history_orders.md
@@ -306,7 +306,8 @@ func main() {
             "reviewed": false,
             "activate_order_type": "MIT",
             "activate_rth": "RTH_ONLY",
-            "submit_price": ""
+            "submit_price": "",
+            "limit_depth_level": 0
           }
         ]
       }
@@ -387,3 +388,4 @@ func main() {
 | ∟∟ activate_order_type      | string   | true     | Order type submitted after triggering, e.g. `LIT` (limit-if-touched) or `MIT` (market-if-touched) |
 | ∟∟ activate_rth             | string   | true     | Whether the order submitted after triggering allows pre/post market trading    |
 | ∟∟ submit_price             | string   | true     | Submitted price                    |
+| ∟∟ limit_depth_level        | int32    | true     | Specifies the bid/ask depth level  |
diff --git a/docs/en/docs/trade/order/order_detail.md b/docs/en/docs/trade/order/order_detail.md
index 64053d1a..5061fe49 100644
--- a/docs/en/docs/trade/order/order_detail.md
+++ b/docs/en/docs/trade/order/order_detail.md
@@ -329,7 +329,8 @@ func main() {
         "reviewed": false,
         "activate_order_type": "MIT",
         "activate_rth": "RTH_ONLY",
-        "submit_price": ""
+        "submit_price": "",
+        "limit_depth_level": 0
       }
     ]
   }
@@ -434,3 +435,4 @@ Order Information
 | ∟∟ activate_order_type     | string   | true     | Order type submitted after triggering, e.g. `LIT` (limit-if-touched) or `MIT` (market-if-touched) |
 | ∟∟ activate_rth            | string   | true     | Whether the order submitted after triggering allows pre/post market trading |
 | ∟∟ submit_price            | string   | true     | Submitted price |
+| ∟∟ limit_depth_level       | int32    | true     | Specifies the bid/ask depth level |
diff --git a/docs/en/docs/trade/order/replace.md b/docs/en/docs/trade/order/replace.md
index 194c38b3..77c39140 100644
--- a/docs/en/docs/trade/order/replace.md
+++ b/docs/en/docs/trade/order/replace.md
@@ -61,6 +61,8 @@ longbridge order replace 693664675163312128 --qty 200 --price 255.00
 | attached_params.profit_taker_submit_price | string | NO | Take-profit limit order submitted price, required when `activate_order_type` is `LIT` |
 | attached_params.stop_loss_submit_price | string | NO | Stop-loss limit order submitted price, required when `activate_order_type` is `LIT` |
 | attached_params.activate_rth | string | NO | Whether the order submitted after triggering allows pre/post market trading<br/><br/>**Enum Value:**<br/> `RTH_ONLY` - Regular trading hours only<br/> `ANY_TIME` - Any time |
+| attached_params.profit_taker_depth_level | int32 | NO | Specifies the bid/ask depth level for the take-profit limit order submitted price, valid when `activate_order_type` is `LIT` |
+| attached_params.stop_loss_depth_level | int32 | NO | Specifies the bid/ask depth level for the stop-loss limit order submitted price, valid when `activate_order_type` is `LIT` |
 
 ### Request Example
 
diff --git a/docs/en/docs/trade/order/submit.md b/docs/en/docs/trade/order/submit.md
index ed8cfd17..2422f2ab 100644
--- a/docs/en/docs/trade/order/submit.md
+++ b/docs/en/docs/trade/order/submit.md
@@ -61,6 +61,8 @@ longbridge order sell TSLA.US 100 --price 260.00
 | attached_params.profit_taker_submit_price | string | NO | Take-profit limit order submitted price, required when `activate_order_type` is `LIT` |
 | attached_params.stop_loss_submit_price | string | NO | Stop-loss limit order submitted price, required when `activate_order_type` is `LIT` |
 | attached_params.activate_rth | string | NO | Whether the order submitted after triggering allows pre/post market trading <br/><br/>**Enum Value:**<br/> `RTH_ONLY` - Regular trading hours only<br/> `ANY_TIME` - Any time |
+| attached_params.profit_taker_depth_level | int32 | NO | Specifies the bid/ask depth level for the take-profit limit order submitted price, valid when `activate_order_type` is `LIT` |
+| attached_params.stop_loss_depth_level | int32 | NO | Specifies the bid/ask depth level for the stop-loss limit order submitted price, valid when `activate_order_type` is `LIT` |
 
 ### Idempotency
 
diff --git a/docs/en/docs/trade/order/today_orders.md b/docs/en/docs/trade/order/today_orders.md
index 18936af6..01f550e9 100644
--- a/docs/en/docs/trade/order/today_orders.md
+++ b/docs/en/docs/trade/order/today_orders.md
@@ -299,7 +299,8 @@ func main() {
             "reviewed": false,
             "activate_order_type": "MIT",
             "activate_rth": "RTH_ONLY",
-            "submit_price": ""
+            "submit_price": "",
+            "limit_depth_level": 0
           }
         ]
       }
@@ -379,3 +380,4 @@ func main() {
 | ∟∟ activate_order_type      | string   | true     | Order type submitted after triggering, e.g. `LIT` (limit-if-touched) or `MIT` (market-if-touched) |
 | ∟∟ activate_rth             | string   | true     | Whether the order submitted after triggering allows pre/post market trading |
 | ∟∟ submit_price             | string   | true     | Submitted price |
+| ∟∟ limit_depth_level        | int32    | true     | Specifies the bid/ask depth level |
diff --git a/docs/zh-CN/docs/trade/order/history_orders.md b/docs/zh-CN/docs/trade/order/history_orders.md
index 5e356a62..d1bf5b84 100644
--- a/docs/zh-CN/docs/trade/order/history_orders.md
+++ b/docs/zh-CN/docs/trade/order/history_orders.md
@@ -305,7 +305,8 @@ func main() {
             "reviewed": false,
             "activate_order_type": "MIT",
             "activate_rth": "RTH_ONLY",
-            "submit_price": ""
+            "submit_price": "",
+            "limit_depth_level": 0
           }
         ]
       }
@@ -386,3 +387,4 @@ func main() {
 | ∟∟ activate_order_type      | string   | true     | 触发后提交的订单类型，例如 `LIT`（限价单）或 `MIT`（市价单） |
 | ∟∟ activate_rth             | string   | true     | 触发后提交订单是否允许盘前盘后。|
 | ∟∟ submit_price             | string   | true     | 委托价格 |
+| ∟∟ limit_depth_level        | int32    | true     | 指定买卖档位 |
diff --git a/docs/zh-CN/docs/trade/order/order_detail.md b/docs/zh-CN/docs/trade/order/order_detail.md
index ab808bbf..d0925c4f 100644
--- a/docs/zh-CN/docs/trade/order/order_detail.md
+++ b/docs/zh-CN/docs/trade/order/order_detail.md
@@ -328,7 +328,8 @@ func main() {
         "reviewed": false,
         "activate_order_type": "MIT",
         "activate_rth": "RTH_ONLY",
-        "submit_price": ""
+        "submit_price": "",
+        "limit_depth_level": 0
       }
     ]
   }
@@ -433,3 +434,4 @@ func main() {
 | ∟∟ activate_order_type     | string   | true     | 触发后提交的订单类型，例如 `LIT`（限价单）或 `MIT`（市价单） |
 | ∟∟ activate_rth            | string   | true     | 触发后提交订单是否允许盘前盘后。 |
 | ∟∟ submit_price            | string   | true     | 委托价格 |
+| ∟∟ limit_depth_level       | int32    | true     | 指定买卖档位 |
diff --git a/docs/zh-CN/docs/trade/order/replace.md b/docs/zh-CN/docs/trade/order/replace.md
index a54ca328..a75eebf0 100644
--- a/docs/zh-CN/docs/trade/order/replace.md
+++ b/docs/zh-CN/docs/trade/order/replace.md
@@ -61,6 +61,8 @@ longbridge order replace 693664675163312128 --qty 200 --price 255.00
 | attached_params.profit_taker_submit_price | string | NO | 止盈限价委托价格，`activate_order_type` 为 `LIT` 时必填 |
 | attached_params.stop_loss_submit_price | string | NO | 止损限价委托价格，`activate_order_type` 为 `LIT` 时必填 |
 | attached_params.activate_rth | string | NO | 触发后提交的订单是否允许盘前盘后<br/><br/>**可选值：**<br/> `RTH_ONLY` - 不允许盘前盘后<br/> `ANY_TIME` - 允许盘前盘后 |
+| attached_params.profit_taker_depth_level | int32 | NO | 止盈限价委托价格的买卖档位，`activate_order_type` 为 `LIT` 时有效 |
+| attached_params.stop_loss_depth_level | int32 | NO | 止损限价委托价格的买卖档位，`activate_order_type` 为 `LIT` 时有效 |
 
 
 ### Request Example
diff --git a/docs/zh-CN/docs/trade/order/submit.md b/docs/zh-CN/docs/trade/order/submit.md
index 400555ce..593a2f0f 100644
--- a/docs/zh-CN/docs/trade/order/submit.md
+++ b/docs/zh-CN/docs/trade/order/submit.md
@@ -57,6 +57,9 @@ longbridge order sell TSLA.US 100 --price 260.00
 | attached_params.profit_taker_submit_price | string | NO | 止盈限价委托价格，`activate_order_type` 为 `LIT` 时必填 |
 | attached_params.stop_loss_submit_price | string | NO | 止损限价委托价格，`activate_order_type` 为 `LIT` 时必填 |
 | attached_params.activate_rth | string | NO | 触发后提交的订单是否允许盘前盘后 <br/><br/>**可选值：**<br/> `RTH_ONLY` - 不允许盘前盘后<br/> `ANY_TIME` - 允许盘前盘后 |
+| attached_params.profit_taker_depth_level | int32 | NO | 止盈限价委托价格的买卖档位，`activate_order_type` 为 `LIT` 时有效 |
+| attached_params.stop_loss_depth_level | int32 | NO | 止损限价委托价格的买卖档位，`activate_order_type` 为 `LIT` 时有效 |
+
 
 ## 幂等性
 
diff --git a/docs/zh-CN/docs/trade/order/today_orders.md b/docs/zh-CN/docs/trade/order/today_orders.md
index 41d94126..cf8ea86b 100644
--- a/docs/zh-CN/docs/trade/order/today_orders.md
+++ b/docs/zh-CN/docs/trade/order/today_orders.md
@@ -298,7 +298,8 @@ func main() {
             "reviewed": false,
             "activate_order_type": "MIT",
             "activate_rth": "RTH_ONLY",
-            "submit_price": ""
+            "submit_price": "",
+            "limit_depth_level": 0
           }
         ]
       }
@@ -378,3 +379,4 @@ func main() {
 | ∟∟ activate_order_type      | string   | true     | 触发后提交的订单类型，例如 `LIT`（限价单）或 `MIT`（市价单） |
 | ∟∟ activate_rth             | string   | true     | 触发后提交订单是否允许盘前盘后。|
 | ∟∟ submit_price             | string   | true     | 委托价格 |
+| ∟∟ limit_depth_level        | int32    | true     | 指定买卖档位 |
diff --git a/docs/zh-HK/docs/trade/order/history_orders.md b/docs/zh-HK/docs/trade/order/history_orders.md
index 317cfc16..439a6f43 100644
--- a/docs/zh-HK/docs/trade/order/history_orders.md
+++ b/docs/zh-HK/docs/trade/order/history_orders.md
@@ -305,7 +305,8 @@ func main() {
             "reviewed": false,
             "activate_order_type": "MIT",
             "activate_rth": "RTH_ONLY",
-            "submit_price": ""
+            "submit_price": "",
+            "limit_depth_level": 0
           }
         ]
       }
@@ -386,3 +387,4 @@ func main() {
 | ∟∟ activate_order_type      | string   | true     | 觸發後提交的訂單類型，例如 `LIT`（限價單）或 `MIT`（市價單） |
 | ∟∟ activate_rth             | string   | true     | 觸發後提交訂單是否允許盤前盤後。|
 | ∟∟ submit_price             | string   | true     | 委託價格 |
+| ∟∟ limit_depth_level        | int32    | true     | 指定買賣檔位 |
diff --git a/docs/zh-HK/docs/trade/order/order_detail.md b/docs/zh-HK/docs/trade/order/order_detail.md
index bc15abd4..f25fbe9b 100644
--- a/docs/zh-HK/docs/trade/order/order_detail.md
+++ b/docs/zh-HK/docs/trade/order/order_detail.md
@@ -328,7 +328,8 @@ func main() {
         "reviewed": false,
         "activate_order_type": "MIT",
         "activate_rth": "RTH_ONLY",
-        "submit_price": ""
+        "submit_price": "",
+        "limit_depth_level": 0
       }
     ]
   }
@@ -433,3 +434,4 @@ func main() {
 | ∟∟ activate_order_type     | string   | true     | 觸發後提交的訂單類型，例如 `LIT`（限價單）或 `MIT`（市價單） |
 | ∟∟ activate_rth            | string   | true     | 觸發後提交訂單是否允許盤前盤後。 |
 | ∟∟ submit_price            | string   | true     | 委託價格 |
+| ∟∟ limit_depth_level       | int32    | true     | 指定買賣檔位 |
diff --git a/docs/zh-HK/docs/trade/order/replace.md b/docs/zh-HK/docs/trade/order/replace.md
index 217db591..ada8aa71 100644
--- a/docs/zh-HK/docs/trade/order/replace.md
+++ b/docs/zh-HK/docs/trade/order/replace.md
@@ -61,6 +61,8 @@ longbridge order replace 693664675163312128 --qty 200 --price 255.00
 | attached_params.profit_taker_submit_price | string | NO | 止盈限價委託價格，`activate_order_type` 為 `LIT` 時必填 |
 | attached_params.stop_loss_submit_price | string | NO | 止損限價委託價格，`activate_order_type` 為 `LIT` 時必填 |
 | attached_params.activate_rth | string | NO | 觸發後提交的訂單是否允許盤前盤後<br/><br/>**可選值：**<br/> `RTH_ONLY` - 不允許盤前盤後<br/> `ANY_TIME` - 允許盤前盤後 |
+| attached_params.profit_taker_depth_level | int32 | NO | 止盈限價委託價格的買賣檔位，`activate_order_type` 為 `LIT` 時有效 |
+| attached_params.stop_loss_depth_level | int32 | NO | 止損限價委託價格的買賣檔位，`activate_order_type` 為 `LIT` 時有效 |
 
 ### Request Example
 
diff --git a/docs/zh-HK/docs/trade/order/submit.md b/docs/zh-HK/docs/trade/order/submit.md
index dd92ba21..5a197729 100644
--- a/docs/zh-HK/docs/trade/order/submit.md
+++ b/docs/zh-HK/docs/trade/order/submit.md
@@ -61,6 +61,8 @@ longbridge order sell TSLA.US 100 --price 260.00
 | attached_params.profit_taker_submit_price | string | NO | 止盈限價委託價格，`activate_order_type` 為 `LIT` 時必填 |
 | attached_params.stop_loss_submit_price | string | NO | 止損限價委託價格，`activate_order_type` 為 `LIT` 時必填 |
 | attached_params.activate_rth | string | NO | 觸發後提交的訂單是否允許盤前盤後 <br/><br/>**可選值：**<br/> `RTH_ONLY` - 不允許盤前盤後<br/> `ANY_TIME` - 允許盤前盤後 |
+| attached_params.profit_taker_depth_level | int32 | NO | 止盈限價委託價格的買賣檔位，`activate_order_type` 為 `LIT` 時有效 |
+| attached_params.stop_loss_depth_level | int32 | NO | 止損限價委託價格的買賣檔位，`activate_order_type` 為 `LIT` 時有效 |
 
 ### 冪等性
 
diff --git a/docs/zh-HK/docs/trade/order/today_orders.md b/docs/zh-HK/docs/trade/order/today_orders.md
index b82141f2..49dcd9f9 100644
--- a/docs/zh-HK/docs/trade/order/today_orders.md
+++ b/docs/zh-HK/docs/trade/order/today_orders.md
@@ -298,7 +298,8 @@ func main() {
             "reviewed": false,
             "activate_order_type": "MIT",
             "activate_rth": "RTH_ONLY",
-            "submit_price": ""
+            "submit_price": "",
+            "limit_depth_level": 0
           }
         ]
       }
@@ -378,3 +379,4 @@ func main() {
 | ∟∟ activate_order_type      | string   | true     | 觸發後提交的訂單類型，例如 `LIT`（限價單）或 `MIT`（市價單） |
 | ∟∟ activate_rth             | string   | true     | 觸發後提交訂單是否允許盤前盤後。|
 | ∟∟ submit_price             | string   | true     | 委託價格 |
+| ∟∟ limit_depth_level        | int32    | true     | 指定買賣檔位 |