Fish trapping device for paddy field fish culture

The invention discloses a fish trapping device for paddy field fish culture. The fish trapping device comprises multiple fish trapping units. Each fish trapping unit comprises a rectangular frame, a steel wire mesh, a first boss and second bosses. The rectangular frame is internally provided with the steel wire mesh. The first boss is fixed on one side of the rectangular frame. The second bosses are fixed on the other side of the rectangular frame. There are two second bosses. Locating rods are flexibly inserted on the first boss and the second bosses between the adjacent fish trapping units.A first locating nut and a second locating nut sleeve on each locating rod through threads. A nut sleeve sleeves on the top end of each locating rod through threads. A rotating sleeve sleeves on the exterior of the nut sleeve through a bearing. The fence structures of different area sizes and shapes can be conveniently made according to the requirements, the structure is stable, the fish are not liable to escape, applicat