Fishpond purification system

The utility model discloses a fishpond purification system, the fishpond purification system is used for purifying the water quality of a fishpond, at least one side of the fishpond is provided with a farmland, the fishpond purification system comprises a source control sewage interception system, a running water circulation system, an aeration oxygenation system and an ecological restoration system; the source control and sewage interception system is arranged on the outer side of the fishpond and is used for carrying out purification and sewage interception treatment on water entering the fishpond; the running water circulation system is used for being arranged between a fishpond and a farmland, so that part of water flows from the fishpond to the farmland for irrigation and then flows back to the fishpond. The aeration oxygenation system comprises a solar aerator arranged in the fish pond so as to adjust the concentration of dissolved oxygen in the water body in the fish pond; the ecological restoration sy