Research conclusions ： According to the special requirements of qinghai - Tibet railway Line，after tests and researches， the integrated signaling system of computer, communication and net technologies is realized. The real information can be transferred bi - directionally between train and control center through GSM - R. Whether the track is occupied or not can be inspected by GPS and EOT equipments without track circuit equipments. With GPS difference orientation technology， the train location accuracy can be improved to satisfy the safety requirement of high - speed train and virtual blocking. The wayside signal and sectional track circuit are eliminated to realize station interlocking and sectional automatic blocking. With new traffic organization mode and equipment maintenance mode, the less maintenance is achieved. With RBWT virtual technology，the safety of the tested train and wayside equipments is guaranteed.