diff --git a/lib/GMLIB_API-JS.d.ts b/lib/GMLIB_API-JS.d.ts
index a105fc5..496cc60 100644
--- a/lib/GMLIB_API-JS.d.ts
+++ b/lib/GMLIB_API-JS.d.ts
@@ -1128,15 +1128,25 @@ export class GMLIB_BinaryStream {
     /** 数据包是否被销毁 */
     #destroy: boolean;
 
+    /** 构造二进流数据包 */
     constructor(
         /** 数据包数据 */
         data: PacketData[]?
     );
 
+    /** 拷贝二进制流数据包 */
+    constructor(
+        /** 要拷贝的二进制流数据包 */
+        stream: GMLIB_BinaryStream
+    );
+
+    /** 获取数据包的ID */
+    getId(): number;
+
     /** 发送数据包 */
     sendTo(
         /** 要发送数据包的玩家对象 */
-        player: Player,
+        player: Player | Entity,
         /** 数据包发送后是否销毁 */
         free: boolean = true
     ): GMLIB_BinaryStream;
@@ -1144,7 +1154,7 @@ export class GMLIB_BinaryStream {
     /** 发送数据包到玩家数组 */
     sendToPlayers(
         /** 要发送数据包的玩家对象数组 */
-        players: Player[],
+        players: Player[] | Entity[],
         /** 数据包发送后是否销毁 */
         free: boolean = true
     ): GMLIB_BinaryStream;
diff --git a/lib/GMLIB_API-JS.js b/lib/GMLIB_API-JS.js
index 1a34e4c..e999d67 100644
--- a/lib/GMLIB_API-JS.js
+++ b/lib/GMLIB_API-JS.js
@@ -380,6 +380,8 @@ const GMLIB_API = {
 const GMLIB_BinaryStream_API = {
     /** 创建二进制流数据包 @type {function():number} */
     create: ll.import("GMLIB_BinaryStream_API", "create"),
+    /** 拷贝二进制流数据包 @type {function(number):number} */
+    copy: ll.import("GMLIB_BinaryStream_API", "copy"),
     /** 发送二进制流数据包 @type {function(number,player):void} */
     sendTo: ll.import("GMLIB_BinaryStream_API", "sendTo"),
     /** 销毁二进制流数据包 @type {function(number):void} */
@@ -2116,30 +2118,39 @@ class GMLIB_BinaryStream {
 
     /**
      * 创建二进制流数据包
-     * @param {{"type":string,"value":any}[]?} value 写入数据
+     * @param {({"type":string,"value":any}[]|GMLIB_BinaryStream)?} value 写入数据
      * @returns {GMLIB_BinaryStream}
      */
     constructor(value) {
-        this.#id = GMLIB_BinaryStream_API.create();
+        this.#id = value instanceof GMLIB_BinaryStream ?  GMLIB_BinaryStream_API.copy(value.getId()) : GMLIB_BinaryStream_API.create();
         if (Array.isArray(value)) this.write(value);
     }
 
+    /**
+     * 获取数据包的ID
+     * @returns {number}
+     */
+    getId() {
+        return this.#id;
+    }
+
     /**
      * 发送数据包
-     * @param {Player} player 玩家
+     * @param {Player|Entity} player 玩家
      * @param {boolean} [free=true] 发送后销毁数据包
      * @returns {GMLIB_BinaryStream}
      */
     sendTo(player, free = true) {
         if (this.#destroy) throw new Error("The BinaryStream has been destroyed");
-        GMLIB_BinaryStream_API.sendTo(this.#id, player);
+        if (player instanceof LLSE_Entity && player.isPlayer()) player = player.toPlayer();
+        if (player instanceof LLSE_Player && !player.isSimulatedPlayer()) GMLIB_BinaryStream_API.sendTo(this.#id, player);
         if (free) this.destroy();
         return this;
     }
 
     /**
      * 发送数据包到玩家
-     * @param {Player[]} players 玩家对象数组
+     * @param {Player[]|Entity[]} players 玩家对象数组
      * @param {boolean} free 发送后销毁数据包
      * @returns {GMLIB_BinaryStream}
      */
@@ -2324,7 +2335,7 @@ class GMLIB_BinaryStream {
      */
     writeBool(value) {
         if (this.#destroy) throw new Error("The BinaryStream has been destroyed");
-        GMLIB_BinaryStream_API.writeBool(this.#id, value);
+        GMLIB_BinaryStream_API.writeBool(this.#id, Boolean(value));
         return this;
     }
 
@@ -2335,7 +2346,7 @@ class GMLIB_BinaryStream {
      */
     writeByte(value) {
         if (this.#destroy) throw new Error("The BinaryStream has been destroyed");
-        GMLIB_BinaryStream_API.writeByte(this.#id, value);
+        GMLIB_BinaryStream_API.writeByte(this.#id, Number(value));
         return this;
     }
 
diff --git a/src/BinaryStreamApi.cpp b/src/BinaryStreamApi.cpp
index 7eb6e95..465d21c 100644
--- a/src/BinaryStreamApi.cpp
+++ b/src/BinaryStreamApi.cpp
@@ -11,6 +11,15 @@ class LegacyScriptBinaryStreamManager {
 
     void cretateBinaryStream(uint id) { mBinaryStream[id] = std::make_shared<GMLIB_BinaryStream>(); }
 
+    uint64 copyBinaryStream(uint id) {
+        auto nextId = getNextId();
+        cretateBinaryStream(nextId);
+        if(auto bs = getBinaryStream(nextId); bs !=nullptr){
+            *getBinaryStream(nextId)->mBuffer = *getBinaryStream(id)->mBuffer;
+        }
+        return nextId;
+    }
+
     void removeBinaryStream(uint64 id) { mBinaryStream.erase(id); }
 
     std::shared_ptr<GMLIB_BinaryStream> getBinaryStream(uint64 id) {
@@ -46,6 +55,9 @@ void Export_BinaryStream_API() {
         BinaryStreamManager.cretateBinaryStream(id);
         return id;
     });
+    RemoteCall::exportAs("GMLIB_BinaryStream_API", "copy", [](uint64 id) -> uint64 {
+        return BinaryStreamManager.copyBinaryStream(id);
+    });
     RemoteCall::exportAs("GMLIB_BinaryStream_API", "reset", [](uint64 id) -> void {
         if (BinaryStreamManager.getBinaryStream(id) == nullptr) BinaryStreamManager.cretateBinaryStream(id);
         else BinaryStreamManager.getBinaryStream(id)->reset();