Great achievements have been made in the construction of QinghaiTibet railway: a. Breakthrough development has been achieved in the construction of QinghaiTibet railway; b. The difficult problem of frozen soil has been solved by means of scientific and technological innovations; c. The basic national policy of protecting the ecological environment has been strictly followed; d. Medical and health measures have been taken in advance and the health of the workers has been guaranteed; e. The railway construction concept has been updated and world firstclass railway has been built.