diff --git a/src/futures-client.ts b/src/futures-client.ts
index 1cd2e48..f1a9a84 100644
--- a/src/futures-client.ts
+++ b/src/futures-client.ts
@@ -25,6 +25,7 @@ import {
   FuturesPlanType,
   FuturesKlineInterval,
   FuturesHistoricPositions,
+  ModifyFuturesOrder,
 } from './types';
 import { REST_CLIENT_TYPE_ENUM } from './util';
 import BaseRestClient from './util/BaseRestClient';
@@ -388,6 +389,11 @@ export class FuturesClient extends BaseRestClient {
     });
   }
 
+  /** Modify Order */
+  modifyOrder(params: ModifyFuturesOrder): Promise<APIResponse<any>> {
+    return this.postPrivate('/api/mix/v1/order/modifyOrder', params);
+  }
+
   /**
    * Cancel all futures orders for a symbol
    */
diff --git a/src/types/request/futures.ts b/src/types/request/futures.ts
index 865c234..ce316e6 100644
--- a/src/types/request/futures.ts
+++ b/src/types/request/futures.ts
@@ -88,6 +88,17 @@ export interface NewBatchFuturesOrder {
   clientOid?: string;
 }
 
+export interface ModifyFuturesOrder {
+  symbol: string;
+  orderId?: string;
+  clientOid?: string;
+  newClientOid?: string;
+  size?: string;
+  price?: string;
+  presetTakeProfitPrice?: string;
+  presetStopLossPrice?: string;
+}
+
 export interface FuturesHistoricPositions {
   startTime: string;
   endTime: string;