大量观测事实已经证实城市化降水效应的存在。城市化进程通过改变城市下垫面属性、城郊热平衡差异、局地环流等，从而影响了降水的时空分布。随着各国城市化的加剧，城市化对降水的影响越来越受到科学家和城市规划者的关注。回顾了城市影响降水强度和降水空间分布的观测事实，城市化降水效应的机制以及研究方法，提出了城市化降水效应研究中存在的问题，并对今后的研究方向作了展望。

A large number of observations have proven the existence of urbanization precipitation effect. Urbanization process affects the precipitation distribution by the process of urban underlying surface properties changing, urban-suburban thermal equilibrium difference and local circulation. With the city sprawling, scientists and city planners are increasingly focusing on the influence of precipitation by urbanization. This paper reviews the observations of precipitation intensity and spatial distribution differences, mechanism and research methods for urbanization effect. Finally, the problems and further research directions of urbanization precipitation effect are discussed.