The invention relates to the technical field of animal husbandry, in particular to an auxiliary turning device for hoof trimming of cows used in animal husbandry. The technical problem to be solved is to provide an auxiliary cow hoof trimming and turning device for animal husbandry that is easy to operate, can hold and turn cows in place, ensures the safety of humans and animals, and is convenient for operators to trim cows. The technical solution of the present invention is: an auxiliary turning device for hoof trimming of cows used in animal husbandry, including a support plate, a connecting seat, a double-axis motor, a power shaft, a power gear, a movable rod, a fixed seat, a square frame, and arc-shaped teeth Strips, arc-shaped plates, cylinders, splints, etc., the connecting seat is fixedly installed on the support plate, and the biaxial motor is fixedly installed on the connecting seat. The splint and blocking mechanism provided by the present invention can secure the cows in the square frame, prevent the cows from being emotionally unstable and break out of the square frame, and greatly reduce the range of activities of the cows to avoid injuries to the cows and operators.