Large deep sea environment-friendly breeding work ship

The invention discloses a large deep sea environment-friendly breeding work ship, a bow mooring equipment area is arranged at the bow of a ship body, a propeller chamber is arranged at the stern of the ship body, and a breeding cabin, a service cabin and a ballast cabin are arranged between the bow of the ship body and the stern of the ship body; the breeding cabin is communicated with the outside through the opening, and grids are arranged at the opening; feed storage and feeding equipment cabins are arranged in the service cabins; the feed storage and feeding equipment cabins are communicated with the breeding cabins through feeding pipelines; an excrement storage cabin is further arranged in the service cabin, and the excrement storage cabin is communicated with the inner bottom of each breeding cabin through an excrement pipeline; a rail extending in the length direction of the ship is arranged at the top of the first ballast tank, and a deck crane used for hoisting a fishing net is erected on the rail. C