There are three types of trains in Beijing Metro: trailer with cab (Tcl car, Te2 car), trailer without cab (T car) and bullet train without cab (M car). Through-type carriages are adopted, and passengers can walk around in the carriages at will. A motor car and a trailer are a braking unit.

By the end of 20 191February, there were 23 rail transit networks in Beijing, with a total mileage of 699.3 kilometers and 405 stations (including 62 transfer stations). As of 20 191February, there are 15 lines under construction in Beijing subway. ?

By 2020, Beijing Metro will form a rail transit network with 30 lines and a total length of 1 177 km. In 20 17 years, the annual passenger volume of Beijing subway reached 4.53 billion, with an average daily passenger volume of 124 1. 1 10,000, and the maximum single-day passenger volume was13,274,600.