Research results: Three quantitative indexes were put forth such as the fitness between urban rail transit network middle and city gravity centre, the fractal dimension identity between urban rail transit network and urban form, and the direction coordination between urban rail transit and city developing. Based on these quantitative indexes, a compositive coordination index was built to quantitatively analyze the coordination between rail transit network configuration and urban form. Take Xi an urban rail transit network planning for instance , the coordination between it is four pre-selection networks and urban form was analyzed. These compositive coordination indexes of four pre-selection network were 0. 7829，0. 7778 , 0. 6908 , 0. 7849 , the computing results showed that the forth network is the best one.