The present invention relates to a tractor harness, which is mounted on a tractor and is harvested while simultaneously performing a rotary operation, the tractor comprising: a traction frame connected to the tractor and towed； A rotary frame coupled to the towing frame and provided with devices necessary for rotary work； A main turntable rotatably coupled to the rear of the rotary frame； A sub-harness plate rotatably coupled to the rear of the main sub-harness plate； a support bracket is formed on the rotary frame, the support sub-harness is coupled to the support bracket and is divided into left and right portions, A pair of spring housings provided with an upper spring at an upper portion thereof and a lower spring at a lower portion thereof； A pair of rod brackets formed on the main circuit board and each having a slot formed in a mutually opposite direction while being divided into left and right sides； A push rod bracket formed on the sub-reed plate； A body head formed on an upper end of the cylinder body is positioned to be elastically supported between the upper spring and the lower spring by being fitted in a slot of the spring housing, and a load head formed at a lower end of the cylinder rod A cylinder slidably fitted in a slot of the rod bracket； And one end thereof is inserted into a slot of the rod bracket and the other end thereof is pivotally coupled to the push rod bracket so that movement of the cylinder rod is restricted within the slot when the cylinder rod is extended, And the pushrod is capable of rotating the sub-harness plate freely or preventing rotation of the sub-harness plate.본 발명은 트랙터에 장착되어 견인되면서 로터리 작업과 동시에 써레질을 하는 트랙터용 써레에 있어서, 트랙터에 연결되어 견인되는 견인프레임； 상기 견인프레임에 결합되고, 로터리 작업시 필요한 장치들이 설치되는 로터리프레임； 상기 로터리프레임의 후미에 회동 가능하게 결합되는 주써레판； 상기 주써레판의 후미에 회동 가능하게 결합되는 부써레판: 상기 로터리프레임에 지지브라켓을 형성하고, 상기 지지브라켓에 결합되며, 좌우로 나뉘어져 있으면서 각각 스프링홈이 형성되며, 상기 스프링홈에는 상하로 구별되어 상부에는 상스프링이 설치되고, 하부에는 하스프링이 설치된 한쌍의 스프링하우징； 상기 주써레판에 형성되고, 좌우로 나뉘어져 있으면서 상호 대향되는 방향에 각각 슬롯이
