Abstract:As one of the source control measures of LID technology system, permeable pavement has many ecological functions, such as reducing the risk of urban waterlogging, alleviating the urban heat island effect, improving the sound environment around the road, and reducing runoff pollution. The basic principles, influencing factors and application effects of the four main ecological functions of permeable pavement are analyzed, and the main research and development directions of permeable pavement in the future are put forward. In order to provide some reference and reference for the subsequent research and design of permeable pavement in ecological and environmental protection.