Transport policy making process of national and local governments should be supported by a comprehensive database to ensure a sustainable and healthy development of urban transport.China Urban Transport Database (CUTD) has been built to play such a role.This paper is to make an introduction of CUTD framework including user management,data warehouse,and application modules.Considering the urban transport development features of Chinese cities,sustainable urban transport development indicators are proposed to evaluate the public transport service level in Chinese cities.International urban transport knowledge base is developed as well.CUTD has been applied in urban transport data processing,urban transport management,and urban transport performance evaluation in national and local transport research agencies,operators,and governments in China,and it will be applied to a broader range of fields.