The agricultural and fishery department of Huainan City promotes small-scale cage fish farming technology, which can be widely applied in water and river channels. The small-sized cages are 2 meters long and 2 meters wide and 1.5 meters high. They are processed into square frames with wood or steel pipes, and mesh enclosures are made of mesh mesh within 2 cm of the mesh to form closed cages. Net cages can be used for stocking grass carp, catfish, tilapia, and head bream, but they require the same variety of varieties and specifications to be neat. Cage culture fish should be fed full-grain pellet feed, and the number of feedings per day can be more than 6 times. Pay attention to flood prevention, wind protection, and fish disease prevention.