Abstract: Transfer coefficient of urban rail transit network is a key index for the evaluation of urban rail transit network planning scheme, the reasonable value of which will affect the choice of planning schemes. Based on the statistics provided by China Urban Rail Transit Association, the 2015-2017 transfer coefficients of urban rapid rail transit network in mainland China are statistically analyzed, the main influencing factors of transfer coefficient are extracted. Based on an analysis of the relationship between network scale, network structure and transfer coefficient, four conclusions related to transfer coefficient are put forward.