Abstract: MOVES model is a model of vehicle emission factors established based on actual conditions of US.To simulate urban vehicle emissions in China, the parameters of MOVES model should to be corrected.In order to enable the MOVES model to correctly simulate characteristics of vehicle emission in Shenzhen, a study on localization of MOVES model is developed based on actual situations in Shenzhen.Project-level parameters including geographic information, vehicle type, fuel, and simulation year are localized.Under the premise that how to define related parameters in MOVES model are clear, the parameters are assigned values according to actual conditions of vehicles in Shenzhen.In addition, comparison and analysis of the relative errors are conducted between emission factors simulated by MOVES model before and after localization, and the ones obtained from on-board emission measurement.The results show that the simulation results of NOx from localized model are improved significantly;in which, the relative errors reduce from 365% to 14% in expressway.The relative errors of CO2 simulated by before and after localized MOVES models are both small, which is within 20% after localization.The relative errors of CO are reduced by 30~50% after localization.However for HC, the simulation results are negligible in all situations, there is a room for improvement.