diff --git a/VERSION b/VERSION
index cd3dcaaf..6b9aa4e6 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.3.50
+0.3.51
diff --git a/src/UHost/Apis/DescribeHostMachineTypeFamiliesResponse.php b/src/UHost/Apis/DescribeHostMachineTypeFamiliesResponse.php
index e3e2d376..245af89d 100644
--- a/src/UHost/Apis/DescribeHostMachineTypeFamiliesResponse.php
+++ b/src/UHost/Apis/DescribeHostMachineTypeFamiliesResponse.php
@@ -24,8 +24,6 @@
 use UCloud\UHost\Models\DiskFeature;
 use UCloud\UHost\Models\NameOperationStatus;
 use UCloud\UHost\Models\FamiliesDataDiskInfo;
-use UCloud\UHost\Models\DiskFeature;
-use UCloud\UHost\Models\NameOperationStatus;
 use UCloud\UHost\Models\MachineSizes;
 use UCloud\UHost\Models\Collection;
 use UCloud\UHost\Models\Features;
diff --git a/src/UHost/Apis/GetAttachedDiskUpgradePriceResponse.php b/src/UHost/Apis/GetAttachedDiskUpgradePriceResponse.php
index fa43767c..c49ffdf9 100644
--- a/src/UHost/Apis/GetAttachedDiskUpgradePriceResponse.php
+++ b/src/UHost/Apis/GetAttachedDiskUpgradePriceResponse.php
@@ -18,8 +18,6 @@
 
 use UCloud\Core\Response\Response;
 use UCloud\UHost\Models\DiskUpgradePriceDetail;
-use UCloud\UHost\Models\DiskUpgradePriceDetail;
-use UCloud\UHost\Models\DiskUpgradePriceDetail;
 
 class GetAttachedDiskUpgradePriceResponse extends Response
 {
diff --git a/src/UHost/Apis/GetUHostInstancePriceResponse.php b/src/UHost/Apis/GetUHostInstancePriceResponse.php
index 4661494c..5bdb6eab 100644
--- a/src/UHost/Apis/GetUHostInstancePriceResponse.php
+++ b/src/UHost/Apis/GetUHostInstancePriceResponse.php
@@ -19,7 +19,6 @@
 use UCloud\Core\Response\Response;
 use UCloud\UHost\Models\UHostPriceSet;
 use UCloud\UHost\Models\PriceDetail;
-use UCloud\UHost\Models\PriceDetail;
 
 class GetUHostInstancePriceResponse extends Response
 {
diff --git a/src/UHost/Params/CreateUHostInstanceParamNetworkInterfaceEIP.php b/src/UHost/Params/CreateUHostInstanceParamNetworkInterfaceEIP.php
index 03dc2132..b7c528c4 100644
--- a/src/UHost/Params/CreateUHostInstanceParamNetworkInterfaceEIP.php
+++ b/src/UHost/Params/CreateUHostInstanceParamNetworkInterfaceEIP.php
@@ -102,6 +102,26 @@ public function setOperatorName($operatorName)
         $this->set("OperatorName", $operatorName);
     }
 
+    /**
+     * ExistEIPId: 指定EIP Id进行绑定
+     *
+     * @return string|null
+     */
+    public function getExistEIPId()
+    {
+        return $this->get("ExistEIPId");
+    }
+
+    /**
+     * ExistEIPId: 指定EIP Id进行绑定
+     *
+     * @param string $existEIPId
+     */
+    public function setExistEIPId($existEIPId)
+    {
+        $this->set("ExistEIPId", $existEIPId);
+    }
+
     /**
      * CouponId: 当前EIP代金券id。请通过DescribeCoupon接口查询，或登录用户中心查看。
      *
diff --git a/src/UHost/UHostClient.php b/src/UHost/UHostClient.php
index 2e40799f..204f1e9b 100644
--- a/src/UHost/UHostClient.php
+++ b/src/UHost/UHostClient.php
@@ -331,6 +331,7 @@ public function createIsolationGroup(CreateIsolationGroupRequest $request = null
      *                 "PayMode" => (string) 弹性IP的计费模式. 枚举值: "Traffic", 流量计费; "Bandwidth", 带宽计费; "ShareBandwidth",共享带宽模式. "Free":免费带宽模式,默认为 "Bandwidth"
      *                 "ShareBandwidthId" => (string) 绑定的共享带宽Id，仅当PayMode为ShareBandwidth时有效
      *                 "OperatorName" => (string) 【若绑定EIP，此参数必填】弹性IP的线路。枚举值: 国际: International BGP: Bgp 各地域允许的线路参数如下: cn-sh1: Bgp cn-sh2: Bgp cn-gd: Bgp cn-bj1: Bgp cn-bj2: Bgp hk: International us-ca: International th-bkk: International kr-seoul:International us-ws:International ge-fra:International sg:International tw-kh:International.其他海外线路均为 International
+     *                 "ExistEIPId" => (string) 指定EIP Id进行绑定
      *                 "CouponId" => (string) 当前EIP代金券id。请通过DescribeCoupon接口查询，或登录用户中心查看。
      *             ]
      *             "IPv6" => (object) [