The Beijing Railway Hub is one of the largest railway hubs in our country. This article explains the general situation of Beijing’s comprehensive transportation development firstly，and then further introduces the development of Beijing’s railway hub from connecting lines，development history to layout division. The transition environment is a key factor that affects the efficiency of passenger travel between railway passenger stations and urban traffic. This article takes the three main railway passenger stations of Beijing（Beijing Railway Station，Beijing West Railway Station，and Beijing South Railway Station）as example and analyzes the current transition environment questions，and further discussed the forecast passenger flow of the New Fengtai Station and the current conversion environment. On this basis，this article puts forward suggestions for optimizing subway transfer and connection for Beijing Railway Station；for Beijing West Railway Station，it proposes suggestions for improving the night bus connection between Beijing West Railway Station and the area east of the East Second Ring Road；and for Beijing South Railway Station. Suggestions for optimizing the entry and exit flow lines of the North and South Plaza were put forward.