A tilting device for a feed supplier is introduced which comprises: a connection body, which is connected to the lower part of a feed supply line for supplying feed, formed with a left side housing and a right side housing with a detachable and connectable structure, and forms an inner space by a connection between the left side housing and the right side housing; a rotary connection part which is formed to face each other on the inner surface of the left housing and the right housing, and provided parallel to the feed supply line; a horizontal axis pipe, which is arranged in the inner space of the connection body, and in which both ends are coupled with the rotary connection part, to rotate with the rotary connection part as the center; and a tilting member, in which an upper end is connected to the central part of the horizontal axis pipe, and which is lengthened to a downward direction, and has a lower end connected to the feed supplier, while comprising a vertical axis pipe.사료 급이를 위한 사료공급라인의 하방에 결합되고, 좌측 하우징과 우측 하우징으로 구성되어 분리체결 가능한 구조로 마련되며 좌우 하우징의 결합에 의해 내부공간을 형성하는 연결몸체; 좌우 하우징 내면에 서로 마주보도록 각각 형성되고 사료공급라인과 평행하게 마련된 회전결합부; 및 연결몸체의 내부공간에 배치되고 양단이 회전결합부와 결합하여 회전결합부를 중심으로 회전되는 가로축파이프 및 상단이 가로축파이프의 중앙부에 연결되고 하방으로 연장되며 하단이 사료급이기와 체결된 세로축파이프로 구성된 틸팅부재;를 포함하는 사료급이기 틸팅장치가 소개된다.