The characteristics of transfer passenger flow demand is one of the key factors in the design of urban rail station transfer form. Convenient transfer is the basic requirement of people-oriented and function oriented in the design of rail transit station. There are great differences in the characteristics of transfer passenger flow and dominant direction among different transfer stations, and there are also differences in different directions in the same transfer station. Generally, the transfer mode is selected with the main objective of meeting the maximum passenger flow. For example, in the form of transfer at the same station, the choice of transfer in the same direction or reverse transfer at the same station needs to be determined according to the passenger flow of the same direction transfer and reverse transfer at the transfer station.