The present invention provides an air-conditioning system for a livestock shed. The present invention includes a livestock shed (10) including an internal space for raising livestock an air conditioner (12) which makes supplies air supplied via a fresh air line (16) be processed and controlled via an inner air supply line (20) an air supply duct (18) which is connected to an outlet of the air conditioner (12) and arranged on the upper part of the livestock shed (10) and which supplies fresh air to the inside of the livestock shed (10) a recovery duct (38) which is arranged at a position of the upper part of the livestock shed (10) far from the air supply duct (18) and connected to the fresh air line (16) on the upper side of the air conditioner (12) which recovers the air inside the livestock shed (10) a circulation fan (34) which is branched from the air supply line (20) of the air conditioner and connected a circulation duct (36) which is connected to the circulation fan (34) of the air conditioner (12) and which circulates and supplies external air supplied via the fresh air line (16) and air recovered by the recovery duct (38) to the indie of the livestock shed (10) and an exhaust duct (42) which is arranged on the periphery of the lower part of the livestock shed (10) from the outside of the livestock shed (10) and connected via an exhaust pipe (44) and which discharges odor and ill-smelling harmful gas of the inside of the livestock shed (10).COPYRIGHT KIPO 2014[Reference numerals] (14) Damper (18) Air supply duct (22) UV lamp (24) Medium filter (26) HEPA filter (28) Cooling unit (30) Heating unit (32) Blower (34) Circulation fan (36) Circulation duct (38) Recovery duct (42) Exhaust duct본 발명은 축사용 공조시스템을 제공한다. 본 발명은 가축의 사육이 이루어지는 내부공간을 갖는 축사(10) 신선공기라인(16)으로 공급되는 공기가 내부의 급기라인(20)을 경유하여 처리되고 제어되어 상기 축사(10)내에 공급될 수 있도록 하는 공조기(12) 상기 공조기(12)의 유출구측에 연결되어 신선공기를 상기 축사(10)의 내부로 공급하도록 상기 축사(10)의 상부영역에 배치된 급기덕트(18) 상기 축사(10)의 상부영역에서 상기 급기덕트(18)로부터 멀리 떨어진 위치에 배치되어 상기 축사(