diff --git a/astrbot/core/platform/sources/aiocqhttp/aiocqhttp_platform_adapter.py b/astrbot/core/platform/sources/aiocqhttp/aiocqhttp_platform_adapter.py
index 91a16c697..8e8bcdb30 100644
--- a/astrbot/core/platform/sources/aiocqhttp/aiocqhttp_platform_adapter.py
+++ b/astrbot/core/platform/sources/aiocqhttp/aiocqhttp_platform_adapter.py
@@ -246,7 +246,13 @@ class AiocqhttpAdapter(Platform):
                     if m["data"].get("url") and m["data"].get("url").startswith("http"):
                         # Lagrange
                         logger.info("guessing lagrange")
-                        file_name = m["data"].get("file_name", "file")
+                        # 检查多个可能的文件名字段
+                        file_name = (
+                            m["data"].get("file_name", "")
+                            or m["data"].get("name", "")
+                            or m["data"].get("file", "")
+                            or "file"
+                        )
                         abm.message.append(File(name=file_name, url=m["data"]["url"]))
                     else:
                         try:
@@ -265,7 +271,14 @@ class AiocqhttpAdapter(Platform):
                                 )
                             if ret and "url" in ret:
                                 file_url = ret["url"]  # https
-                                a = File(name="", url=file_url)
+                                # 优先从 API 返回值获取文件名，其次从原始消息数据获取
+                                file_name = (
+                                    ret.get("file_name", "")
+                                    or ret.get("name", "")
+                                    or m["data"].get("file", "")
+                                    or m["data"].get("file_name", "")
+                                )
+                                a = File(name=file_name, url=file_url)
                                 abm.message.append(a)
                             else:
                                 logger.error(f"获取文件失败: {ret}")