A farm unit for external rearing and keeping rabbits comprises a support as a supporting frame, which comprises legs and horizontal carrying angled bends, plated floor, a unit for sucking air as a ventilation pipe, a unit for collecting and removing excrements as a cone tank and a collector of excrements, tiers for rabbits, which comprise separate compartments for rabbits, a dam compartment. Said tiers for rabbits are made up by supporting legs, side and internal replaceable walls and a roof, and on the outside of the tiers of rabbits outer compartments as mounted mangers, autodrinkers, feeding racks are fixed and arranged. On the supporting frame a clearance frame is mounted, it has a shape of a four-sided figure, which is formed of four horizontal planes, and below of each of such planes a rectangular plane is fixed horizontally. In doing so the clearance frame is mounted onto carrying angled bends of the supporting frame, and from above – the supporting frame and onto the clearance frame a monolith tank, which is made of polymer material, is mounted and fixed. In doing so such a monolith tank is made as a turned truncated pyramid with a cylindrical spout and the lower opening in the lower part of the monolith tank, and the monolith tank comprises four walls, the upper folding and the vertical edge along the upper edge of each of the walls of the monolith tank and a folding on the lower edges of the lower edge in the lower part of said monolith tank, and on one of the walls of the the monolith tank a side wall for mounting a ventilation pipe is arranged, and from below of the monolith tank the collector of excrements, which is made as a replaceable container, is fixed to the cylindrical spout. In addition, the plated floor is made as separate replaceable plate sections, each of which is mounted from above the upper plane of the upper foil of the monolith tank. In doing so the ventilation pipe is arranged and fixed from above the outside of the farm unit and mounte
