Novel runway fish culture system

A novel raceway fish culture system comprises a plurality of culture devices, a suction device and a treatment pond. The multiple breeding devices are all arranged in the breeding water body, each breeding device comprises a runway fishpond and a sedimentation pond arranged at the first end of the runway fishpond, the runway fishpond is communicated with the sedimentation pond through a fish blocking net, the two side wall faces of the runway fishpond and the wall face of the second end of the runway fishpond are all closed, and the second end of the runway fishpond is further connected with a water pushing device. The water pushing device is communicated with the runway fishpond and an external culture water body, the water pushing device is also connected with external air through a suction pipeline, the suction device is respectively communicated with the plurality of settling ponds, the treatment pond is positioned outside the culture water body, and the suction device is also communicated to the treatmen