River regulation system

The invention discloses a river regulation system, which comprises a filter tank, a mixed reaction tank, a biological cleaning tank, a first vegetation purification wetland, a second vegetation purification wetland, a sedimentation tank and a reservoir, wherein the filter tank, the mixed reaction tank, the biological cleaning tank, the first vegetation purification wetland, the second vegetation purification wetland, the sedimentation tank and the reservoir are arranged according to a river sewage treatment process, wherein filtering baskets are arranged in the filter tank and are respectivelya first-level filtering basket and a second-level filtering basket; a flocculant adding device is arranged out of the mixed reaction tank and is communicated with the mixed reaction tank; a slag discharging groove and a mixer area arranged in the mixed reaction tank; the biological cleaning tank comprises a composite microorganism aeration oxygenation device; the first vegetation purification wetland and the second veget