Data interactive transmission method and system and display

The invention discloses a data interactive transmission method and system and a display. According to the data interactive transmission method and system and the display, an external data interface is arranged at a display terminal and meanwhile improvement is performed on the data transmission mode of the existing signal transmission line, so that data interactive transmission between external mobile phones or other devices of the external data interface of the display terminal and a host terminal is achieved, wherein the external mobile phones or the other devices of the external data interface of the display terminal are read through the display terminal; data interactive transmission between data which are read and stored through the host terminal and the external mobile phones or the other devices of the external data interface of the display terminal is also achieved; the efficiency of data interactive transmission of the mobile phones or the other devices and a PC (Personal Computer) is improved; users can use conveniently; the experience degree of the users is increased.