As the communication carrier of airborne equipment, sub avionics system and avionics modules, data bus play an important role on the modern aircraft performance.Airborne highspeed data bus is the key technology of new generation advanced integrated avionics system, which used for realtime transmission of audio, graphics, images, video and other large volumes of data. A brief overview of several typical airborne highspeed data bus techniques and their development actualities was given in this paper, and then discussed the prospects and value of 1394B and Fibre channel from comparing their transmission speeds, protocols, topology and technology maturation status.