The invention belongs to the technical control field of water collection and drainage, rainwater filtration, purification, regulation and storage, and particularly relates to a regulation and storage system with functions of rainwater filtration, purification and collection. Lawns, storage tanks, municipal pipe networks, and both sides of motor vehicle roads are respectively provided with curbstones in the shape of rectangular troughs. Below the non-slip surface layer, there is a double-layer sidewalk rainwater collection temporary storage layer to collect rainwater, and a graded gravel layer, activated carbon core filter layer, water purification layer and non-woven geotextile layer to filter seepage water. Through the collection, purification, storage, sewage interception and discharge of rainwater on the road surface, the present invention realizes the goals of peak shaving and storage, lawn conservation and water ecological restoration, and has important reference significance for the construction of "sponge city".