diff --git a/astrbot/core/platform/sources/webchat/webchat_adapter.py b/astrbot/core/platform/sources/webchat/webchat_adapter.py
index 9762330d8..b998e8d9d 100644
--- a/astrbot/core/platform/sources/webchat/webchat_adapter.py
+++ b/astrbot/core/platform/sources/webchat/webchat_adapter.py
@@ -50,14 +50,7 @@ class WebChatAdapter(Platform):
     async def send_by_session(
         self, session: MessageSesion, message_chain: MessageChain
     ):
-        # abm.session_id = f"webchat!{username}!{cid}"
-        plain = ""
-        cid = session.session_id.split("!")[-1]
-        for comp in message_chain.chain:
-            if isinstance(comp, Plain):
-                plain += comp.text
-        web_chat_back_queue.put_nowait((plain, cid))
-
+        await WebChatMessageEvent._send(message_chain, session.session_id)
         await super().send_by_session(session, message_chain)
 
     async def convert_message(self, data: tuple) -> AstrBotMessage:
diff --git a/astrbot/core/platform/sources/webchat/webchat_event.py b/astrbot/core/platform/sources/webchat/webchat_event.py
index 01bc4b352..49a4a2cfd 100644
--- a/astrbot/core/platform/sources/webchat/webchat_event.py
+++ b/astrbot/core/platform/sources/webchat/webchat_event.py
@@ -7,19 +7,20 @@ from astrbot.api.message_components import Plain, Image
 from astrbot.core.utils.io import download_image_by_url
 from astrbot.core import web_chat_back_queue
 
+imgs_dir = "data/webchat/imgs"
 
 class WebChatMessageEvent(AstrMessageEvent):
     def __init__(self, message_str, message_obj, platform_meta, session_id):
         super().__init__(message_str, message_obj, platform_meta, session_id)
-        self.imgs_dir = "data/webchat/imgs"
-        os.makedirs(self.imgs_dir, exist_ok=True)
+        os.makedirs(imgs_dir, exist_ok=True)
 
-    async def send(self, message: MessageChain):
+    @staticmethod
+    async def _send(message: MessageChain, session_id: str):
         if not message:
             web_chat_back_queue.put_nowait(None)
             return
 
-        cid = self.session_id.split("!")[-1]
+        cid = session_id.split("!")[-1]
 
         for comp in message.chain:
             if isinstance(comp, Plain):
@@ -27,7 +28,7 @@ class WebChatMessageEvent(AstrMessageEvent):
             elif isinstance(comp, Image):
                 # save image to local
                 filename = str(uuid.uuid4()) + ".jpg"
-                path = os.path.join(self.imgs_dir, filename)
+                path = os.path.join(imgs_dir, filename)
                 if comp.file and comp.file.startswith("file:///"):
                     ph = comp.file[8:]
                     with open(path, "wb") as f:
@@ -48,4 +49,7 @@ class WebChatMessageEvent(AstrMessageEvent):
             else:
                 logger.debug(f"webchat 忽略: {comp.type}")
         web_chat_back_queue.put_nowait(None)
+
+    async def send(self, message: MessageChain):
+        await WebChatMessageEvent._send(message, session_id=self.session_id)
         await super().send(message)