Fish Scale remova and back opening machine put the fish into the conveyor belt directly, fish are be cleaned inner the machine by the conveyor belt. The fish come out from the other side of the machine at around 5 seconds after the fish come into the machine, while the fish scale are be cleaned thoroughly and open the back of the fish automatically and accurately at the same time which don’t hurt the fish skin and descale cleanly. This machine is easy to operation, save time and labour, improve the effect and reduce the cost.