Marine ranch aquaculture net cage

The utility model discloses a marine ranch culture net cage, which belongs to the field of mariculture and comprises a floating platform, nettings are fixedly mounted on the periphery of the bottom end of the floating platform, and waterproof electric slide rails are fixedly mounted on the periphery of the top end of the floating platform. The multiple waterproof electric sliding rails are internally connected with U-shaped transmission pieces in a sliding mode through sliding blocks, the bottom ends of the multiple U-shaped transmission pieces are fixedly connected with embedding pieces, waterproof electric winding rollers are installed at the positions, close to the waterproof electric sliding rails, of the top end of the floating table, and isolating membranes are connected to the multiple waterproof electric winding rollers in a wound mode. According to the device, the isolating membrane is released by the waterproof electric winding roller, the isolating membrane is pulled by the waterproof electric slid