The invention discloses oxygenation equipment for aquaculture. The oxygenation equipment for aquaculture comprises a ship body, a ship bottom, a swing seat hole, a guide block seat, a guide block seathole, a crank gear shaft, a center hole, a through hole, a universal joint frame, a first joint, a right cross shaft, a middle joint, a left cross shaft, a second joint, paddles, a rotating seat, a sliding groove, a first motor, a swing rod, a swing block, a swing gear, a first gear, an internal thread, a screw rod, a limiting disc, a second gear, a second motor, an aeration disc, an aeration hole, an air pump, a first air pipe and a second air pipe, the bottom of the ship body is provided with the ship bottom, the left side of the ship bottom is provided with the swing seat hole, the right side of the swing seat hole is provided with the guide block seat, the middle of the guide block seat is provided with the guide block seat hole, and the crank gear shaft is arranged on the right of the guide block seat.