The utility model discloses a take etting fixing device's deep water net cage, including box with a net floating frame, the etting, the weight, connect rope subassembly and sliding ring, upwards just the opening is edge -fixed on box with a net floating frame for etting shape opening, every is connected the rope subassembly and includes first connection rope and second connection rope, the fixed weight of the box with a net floating frame other end is connected to first connection rope one end, the second is connected rope one end and is connected box with a net floating frame other end connection etting bottom, the sliding ring is fixed in first connection rope and goes up near weight department, second connection rope passes sliding ring cavity position and the slip from top to bottom of second connection rope can be followed to the sliding ring. The utility model discloses when drawing in the net when receiving the fish or changing the etting, the first connection of pull -up rope upwards earlier, because the effect of sliding ring, the rope pull -up that can not make progress is connected to the second, then the rope is connected to the redraw second can be with the etting pull -up, can avoid etting gathering extrusion to breed the object, can solve again when changing the etting and drawing in the net, need the manual work end etting of releaseing that anhydrates, and lead to expensive, inefficient problem.