Abstract: Based on the pure electric city bus operation of Xi'an high tech Zone, the vehicle driving route was recordedand the data was acquired by the Race-Technology instrument.Principal component analysis in the software SPSS was adopted to class site motion intervals and the cluster analysis method was utilized to construct new categories Xi'an city district.The city electric bus power systems were matched according to the establisheddriving conditions.Then the corresponding vehicle simulation model was set up by using the simulation softwareAVL-CRUISE.Finally, the comprehensive performance simulations of the matched pure electric vehicle model and the pure electric city bus BYD-K9 vehicle operating in Xi'an hi tech Zone were carried out under the established driving cycle.The results show that as the speed ratio of the matching vehicle is fixed, the match has some influence on the power performance, but meets the requirements of the high-tech zone, and the power consumption is significantly less than the BYD-K9 pure electric city bus.