The utility model relates to the technical field of crab breeding, in particular to a crab breeding monitoring device which comprises a frame, a water tank is arranged in the frame, a breeding box is arranged on the water tank, a visual module matched with the breeding box is arranged on the frame, a controller is arranged on one side of the frame, a water tank is arranged in the frame, and the controller is connected with the water tank. The water inlet end and the water outlet end of the breeding box are both connected with the water tank, a movable frame is arranged on the frame, a mechanical arm is arranged on the movable frame, a driving structure is arranged on the frame, the driving structure is in power connection with the movable frame, life pictures of crabs are collected by arranging a visual module, remote monitoring is achieved, and the visual module is connected with the water tank. The water tank is connected with the water tank, circulating
water flow is formed, water can be supplemented to the water tank in time,
sewage in the water tank can be discharged, the bred crabs and the breeding box can be taken out through the mechanical arm, and the
labor burden is reduced.