diff --git a/astrbot/core/db/sqlite.py b/astrbot/core/db/sqlite.py
index 140fb2a26..69203bf6d 100644
--- a/astrbot/core/db/sqlite.py
+++ b/astrbot/core/db/sqlite.py
@@ -729,8 +729,8 @@ class SQLiteDatabase(BaseDatabase):
         if session_id:
             kwargs["session_id"] = session_id
         else:
-            # Auto-generate session_id with platform_id prefix
-            kwargs["session_id"] = f"{platform_id}_{uuid.uuid4()}"
+            # Auto-generate session_id
+            kwargs["session_id"] = uuid.uuid4()
 
         async with self.get_db() as session:
             session: AsyncSession
diff --git a/astrbot/dashboard/routes/chat.py b/astrbot/dashboard/routes/chat.py
index 70e52e778..2620f1a17 100644
--- a/astrbot/dashboard/routes/chat.py
+++ b/astrbot/dashboard/routes/chat.py
@@ -119,11 +119,14 @@ class ChatRoute(Route):
         if "message" not in post_data and "image_url" not in post_data:
             return Response().error("Missing key: message or image_url").__dict__
 
-        if "conversation_id" not in post_data:
-            return Response().error("Missing key: conversation_id").__dict__
+        if "session_id" not in post_data and "conversation_id" not in post_data:
+            return (
+                Response().error("Missing key: session_id or conversation_id").__dict__
+            )
 
         message = post_data["message"]
-        conversation_id = post_data["conversation_id"]
+        # conversation_id = post_data["conversation_id"]
+        session_id = post_data.get("session_id", post_data.get("conversation_id"))
         image_url = post_data.get("image_url")
         audio_url = post_data.get("audio_url")
         selected_provider = post_data.get("selected_provider")
@@ -136,12 +139,11 @@ class ChatRoute(Route):
                 .error("Message and image_url and audio_url are empty")
                 .__dict__
             )
-        if not conversation_id:
-            return Response().error("conversation_id is empty").__dict__
+        if not session_id:
+            return Response().error("session_id is empty").__dict__
 
         # 追加用户消息
-        # conversation_id 现在实际上是 session_id
-        webchat_conv_id = conversation_id
+        webchat_conv_id = session_id
 
         # 获取会话特定的队列
         back_queue = webchat_queue_mgr.get_or_create_back_queue(webchat_conv_id)
diff --git a/dashboard/src/components/chat/Chat.vue b/dashboard/src/components/chat/Chat.vue
index 366641a8a..81b3c327f 100644
--- a/dashboard/src/components/chat/Chat.vue
+++ b/dashboard/src/components/chat/Chat.vue
@@ -947,7 +947,7 @@ export default {
                     },
                     body: JSON.stringify({
                         message: promptToSend,
-                        conversation_id: this.currSessionId,
+                        session_id: this.currSessionId,
                         image_url: imageNamesToSend,
                         audio_url: audioNameToSend ? [audioNameToSend] : [],
                         selected_provider: selectedProviderId,