In order to implement national strategic plan of the great developing West China and the "two overall situation" policy, the construction of railway passages connecting closely the West China with the Middle & Fast China has become a particular problem which was explored by scholars and experts in the recent times. At first, the proposed suggestions and schemes concerned with above aspect arc introduced in detail in this paper. Then, by analysis and induction, a comprehensive tentative plan has been proposed as follows: based on the structure of railway networks of the "eight vertical and eight horizontal trunk lines”, "one horizontal, two vertical and five inclined trunk lines" should be increased to the national railway networks. Finally, it is suggested that the implementation of national 120 000 km railway plan should be divided into three stages, i. e. the year 2010, 2030 and 2050.