The national sponge city pilot construction has been steadily carried out. However, the actual mitigation effect of the sponge measures on urban flood water logging has not been validated. Through monitoring the water logging spots in the pilot area of sponge city construction in Xixian New District, and comparing the data of two similar medium-sized rainfalls before and after the LID reconstruction in the pilot area to quantitatively analyze the changes in the number of waterlogging points, the extent and depth of waterlogging in the area and their causes. It is indicated that sponge effect is more obvious in the completion area of LID reconstruction in the sponge city of Xixian New District, and the LID measures are able to mitigate the urban flood water logging caused by the intermediate storm.