The driveway drainage asphalt pavement and the permeable sidewalk paving are widely used in the urban roads day by day.

It s introduced the actual of the urban ecological environment and the advantage of the permeable pavement,it analyses the question of popularizing the useness of the permeable pavement and give the measure to spread the use of the permeable pavement.

It introduced the advantage of the permeable pavement, analysed the problems in the course of popularizing the permeable pavement and put forward the countermeasure to speed up the application of the permeable pavement.

It s introduced the actual ecological environment in city and the quality of the permeable pavement,in the paper,it analyses the improved condition of the urban ecological environment which caused by the permeable pavement.

Changing traditional ideas, from the collection?permeation?storage of rainwater,some new methods that include reforming urban un-porous pavement to porous pavement?using concave to store flood?establishing the system of collecting and storing rain-water and designing porous pipeline are raised.

Experimental research on previous sidewalk pavement;

Ground parking lots will be on the increase as the number of automobiles rising, so it is imperative for permeable pavement to be used.

In the process of urbanization in Nanjing,the construction of the city makes the original soil surface be covered by impermeable pavement increasingly,inducing series urban environmental problems,the most remarkable one of which is the aggravation of stormwater runoff as a result of the runoff coefficient increasing.