Split by the v-machine-oriented front, circular saw blade, rack, u-shaped pit and transmission system. Before the v-grooves make a pig carcass was sent to the alignment of the spine circular saw blade and make the pig carcass by standing back. Cooperation of the tractor, pig carcass through the high-speed rotation of the saw blade while pig carcass was split into two halves. After splitting a cushion after the u-shaped Groove sides of meat hanging on the pole hook returns to state pending through the splitting process