Water body remediation system based on plant

The utility model discloses a water body remediation system based on plants. The water body remediation system comprises an anaerobic zone with a water inlet, and an aerobic zone which is communicated with the anaerobic zone through a flow push device, wherein hydrophilous plants are respectively arranged on the tops of the anaerobic zone and the aerobic zone; the root systems of the hydrophilous plants are immersed into a to-be-purified water body; an aeration tube for aeration is arranged inside the aerobic zone; the purified water body flows out from the aerobic zone. By adopting the water body remediation system, defects that blocking and deposition can be caused in artificial natural ecological remediation, the maintenance cost is high and the long-term operation effect is poor can be avoided, and water body remediation is achieved by virtue of the combination of sewage treatment and natural ecological remediation.