diff --git a/BitMart.Net.UnitTests/Endpoints/Spot/Trading/CancelAllOrder.txt b/BitMart.Net.UnitTests/Endpoints/Spot/Trading/CancelAllOrder.txt
new file mode 100644
index 0000000..07e90ba
--- /dev/null
+++ b/BitMart.Net.UnitTests/Endpoints/Spot/Trading/CancelAllOrder.txt
@@ -0,0 +1,10 @@
+POST
+/spot/v4/cancel_all
+true
+{
+  "code": 1000,
+  "trace":"886fb6ae-456b-4654-b4e0-d681ac05cea1",
+  "message": "OK",
+  "data": {
+  }
+}
\ No newline at end of file
diff --git a/BitMart.Net.UnitTests/RestRequestTests.cs b/BitMart.Net.UnitTests/RestRequestTests.cs
index e6cd8ea..9a1de9b 100644
--- a/BitMart.Net.UnitTests/RestRequestTests.cs
+++ b/BitMart.Net.UnitTests/RestRequestTests.cs
@@ -108,6 +108,7 @@ public async Task ValidateSpotTradingDataCalls()
             await tester.ValidateAsync(client => client.SpotApi.Trading.GetUserTradesAsync(), "GetUserTrades", nestedJsonProperty: "data");
             await tester.ValidateAsync(client => client.SpotApi.Trading.GetOrderTradesAsync("123"), "GetOrderTrades", nestedJsonProperty: "data");
             await tester.ValidateAsync(client => client.SpotApi.Trading.CancelOrdersAsync("123"), "CancelOrders", nestedJsonProperty: "data");
+            await tester.ValidateAsync(client => client.SpotApi.Trading.CancelAllOrderAsync(), "CancelAllOrder");
         }
 
         [Test]
diff --git a/BitMart.Net/BitMart.Net.xml b/BitMart.Net/BitMart.Net.xml
index 0c11ee3..bb83c57 100644
--- a/BitMart.Net/BitMart.Net.xml
+++ b/BitMart.Net/BitMart.Net.xml
@@ -347,6 +347,9 @@
         <member name="M:BitMart.Net.Clients.SpotApi.BitMartRestClientSpotApiTrading.CancelOrdersAsync(System.String,System.Collections.Generic.IEnumerable{System.String},System.Collections.Generic.IEnumerable{System.String},System.Threading.CancellationToken)">
             <inheritdoc />
         </member>
+        <member name="M:BitMart.Net.Clients.SpotApi.BitMartRestClientSpotApiTrading.CancelAllOrderAsync(System.String,System.Nullable{BitMart.Net.Enums.OrderSide},System.Threading.CancellationToken)">
+            <inheritdoc />
+        </member>
         <member name="M:BitMart.Net.Clients.SpotApi.BitMartRestClientSpotApiTrading.PlaceMarginOrderAsync(System.String,BitMart.Net.Enums.OrderSide,BitMart.Net.Enums.OrderType,System.Nullable{System.Decimal},System.Nullable{System.Decimal},System.Nullable{System.Decimal},System.String,System.Threading.CancellationToken)">
             <inheritdoc />
         </member>
@@ -1977,6 +1980,16 @@
             <param name="clientOrderIds">Client order ids to cancel. Either this or orderIds should be provided</param>
             <param name="ct">Cancellation token</param>
         </member>
+        <member name="M:BitMart.Net.Interfaces.Clients.SpotApi.IBitMartRestClientSpotApiTrading.CancelAllOrderAsync(System.String,System.Nullable{BitMart.Net.Enums.OrderSide},System.Threading.CancellationToken)">
+            <summary>
+            Cancel all orders matching the parameters
+            <para><a href="https://developer-pro.bitmart.com/en/spot/#cancel-all-order-v4-signed" /></para>
+            </summary>
+            <param name="symbol">Filter by symbol</param>
+            <param name="side">Filter by order side</param>
+            <param name="ct">Cancellation token</param>
+            <returns></returns>
+        </member>
         <member name="M:BitMart.Net.Interfaces.Clients.SpotApi.IBitMartRestClientSpotApiTrading.PlaceMarginOrderAsync(System.String,BitMart.Net.Enums.OrderSide,BitMart.Net.Enums.OrderType,System.Nullable{System.Decimal},System.Nullable{System.Decimal},System.Nullable{System.Decimal},System.String,System.Threading.CancellationToken)">
             <summary>
             Place a new margin order
diff --git a/BitMart.Net/Clients/SpotApi/BitMartRestClientSpotApiTrading.cs b/BitMart.Net/Clients/SpotApi/BitMartRestClientSpotApiTrading.cs
index a9ae6be..6a2b9b2 100644
--- a/BitMart.Net/Clients/SpotApi/BitMartRestClientSpotApiTrading.cs
+++ b/BitMart.Net/Clients/SpotApi/BitMartRestClientSpotApiTrading.cs
@@ -148,6 +148,21 @@ public async Task<WebCallResult<BitMartCancelOrdersResult>> CancelOrdersAsync(st
 
         #endregion
 
+        #region Cancel Order
+
+        /// <inheritdoc />
+        public async Task<WebCallResult> CancelAllOrderAsync(string? symbol = null, OrderSide? side = null, CancellationToken ct = default)
+        {
+            var parameters = new ParameterCollection();
+            parameters.AddOptional("symbol", symbol);
+            parameters.AddOptionalEnum("side", side);
+            var request = _definitions.GetOrCreate(HttpMethod.Post, "/spot/v4/cancel_all", BitMartExchange.RateLimiter.BitMart, 1, true,
+                new SingleLimitGuard(1, TimeSpan.FromSeconds(3), RateLimitWindowType.Sliding, keySelector: SingleLimitGuard.PerApiKey));
+            return await _baseClient.SendAsync(request, parameters, ct).ConfigureAwait(false);
+        }
+
+        #endregion
+
         #region Place Margin Order
 
         /// <inheritdoc />
diff --git a/BitMart.Net/Interfaces/Clients/SpotApi/IBitMartRestClientSpotApiTrading.cs b/BitMart.Net/Interfaces/Clients/SpotApi/IBitMartRestClientSpotApiTrading.cs
index 9379726..5293d4c 100644
--- a/BitMart.Net/Interfaces/Clients/SpotApi/IBitMartRestClientSpotApiTrading.cs
+++ b/BitMart.Net/Interfaces/Clients/SpotApi/IBitMartRestClientSpotApiTrading.cs
@@ -57,6 +57,16 @@ public interface IBitMartRestClientSpotApiTrading
         /// <param name="ct">Cancellation token</param>
         Task<WebCallResult<BitMartCancelOrdersResult>> CancelOrdersAsync(string symbol, IEnumerable<string>? orderIds = null, IEnumerable<string>? clientOrderIds = null, CancellationToken ct = default);
 
+        /// <summary>
+        /// Cancel all orders matching the parameters
+        /// <para><a href="https://developer-pro.bitmart.com/en/spot/#cancel-all-order-v4-signed" /></para>
+        /// </summary>
+        /// <param name="symbol">Filter by symbol</param>
+        /// <param name="side">Filter by order side</param>
+        /// <param name="ct">Cancellation token</param>
+        /// <returns></returns>
+        Task<WebCallResult> CancelAllOrderAsync(string? symbol = null, OrderSide? side = null, CancellationToken ct = default);
+
         /// <summary>
         /// Place a new margin order
         /// <para><a href="https://developer-pro.bitmart.com/en/spot/#new-margin-order-v1-signed" /></para>