Aquaculture net cage made of plastic steel profile

The invention relates to the technical field of aquaculture net cages, in particular to a plastic steel profile aquaculture net cage which comprises a plurality of mounting racks and a plurality of net sash frames arranged among the mounting racks, net bottoms are arranged on the mounting racks, two rails are arranged on the mounting racks, and chains are arranged on the mounting racks through chain wheels; the aquaculture net cage further comprises a limiting mechanism, the limiting mechanism is arranged on the mounting frame, the rails are communicated through cooperation of a chain and the limiting mechanism, according to the aquaculture net cage made of the plastic steel profiles, the rails are communicated after the limiting mechanism relieves limitation through cooperation of the arranged traction mechanism and the limiting mechanism, and the rails can be switched through the net sash frame; the traction mechanism can be connected with the net fan frame and enables the net fan frame to move, so that the