Response reading method and data transmission system

The invention provides a response reading method and a data transmission system. The method comprises: a system sending a first operation instruction corresponding to a first temporary file to a memory storage device, wherein the first operation instruction indicates an intelligent card to execute first operation. The method also comprises: the system executing first writing-in operation of a first dummy file, the first writing-in operation being used to update first data in a cache memory. The method also comprises: the system executing response reading operation corresponding to a second temporary file, wherein the response reading operation is used to read response of the intelligent card on the first operation instruction. Therefore, the method can ensure correctness of response data received by a host system. 本发明提供种响应读取方法及数据传输系统。此方法包括：由系统发送对应于第暂时文件的第操作指令至存储器存储装置，其中第操作指令指示智能卡执行第操作。此方法还包括：由系统执行第虚设文件的第写入操作，此第写入操作用以更新快取存储器中的第数据。此方法还包括：由系统执行对应于第二暂时文件的响应读取操作，其中所述响应读取操作用以读取智能卡对应于所述第操作指令的响应。因此，本发明可确保主机系统所接收到的响应数