Tail water ecological management riverway wetland system with low land use amount

The utility model relates to a low-land-consumption river wetland system for ecological treatment of tail water, which comprises a river bank wetland module arranged according to the topographic characteristics of the river bank and a river wetland module arranged in the river, and the river bank wetland module is located at the highest point of the system. Wherein the riverway wetland module comprises a precipitation wetland and a shoal wetland and/or an ecological floating bed, the precipitation wetland is arranged at a beheaded creek and/or a dead angle and/or a corner of a riverway and is defined by a concave and/or convex terrain area, the shoal wetland is used for ecologically restoring a waterway of the riverway, and the ecological floating bed is arranged in the riverway in a narrow area. According to the wetland system, use of river bank land can be reduced, riverway beheaded creeks, dead corners or corners are utilized, riverway waterways with different widths are repaired, ecological treatment of a