The present invention relates to a system for removing malodor of a cattle shed by using an OH radical generator. In order to provide OH radical water, produced by dissolving OH radicals in a gas phase in stored water, to the cattle shed, the system for removing malodor of a cattle shed includes: an OH radical generator which is installed close to the cattle shed and generates the OH radicals in a gas phase an external storage tank which is installed in a location higher than the OH radical generator, receives water, and stores the water as the stored water an agitator which produces the OH radical water by mixing the stored water, supplied by the external storage tank, with the OH radicals in a gas phase and a circulation line which is connected between the agitator and the external storage tank, and becomes a flow path of the stored water or the OH radical water. The OH radical water, produced by the agitator, is inserted or re-inserted through the circulation line into the external storage tank and then is stored in the external storage tank. The purpose of the present invention is to provide the system for removing malodor of a cattle shed by using an OH radical generator which can stably provide a large amount of the OH radical water to the cattle shed and can be maintained and repaired in an easy manner.COPYRIGHT KIPO 2016본 발명은 OH라디칼발생기를 이용한 축사 악취 제거시스템에 관한 것으로서, 기체상의 OH라디칼을 저장수에 용존시켜 만든 OH라디칼수를 축사에 공급하도록, 상기 축사의 주변에 설치되어 상기 기체상의 OH라디칼을 발생시키는 OH라디칼발생기 상기 OH라디칼발생기보다 높은 위치에 설치되고, 물을 유입받아 상기 저장수로 저장하는 외부저장탱크 상기 외부저장탱크로부터 공급받은 상기 저장수에 상기 기체상의 OH라디칼을 혼합시켜서 상기 OH라디칼수를 만드는 교반기 및 상기 교반기와 상기 외부저장탱크 사이에 연결되어서, 상기 저장수 또는 상기 OH라디칼수의 유동 경로가 되는 순환라인을 포함하고, 상기 교반기에서 만들어진 상기 OH라디칼수가 상기 순환라인을 통해 상기 외부저장탱크로 유입 또는 재유입되어 상기 외부저장탱크에 저장된다.