PURPOSE: An automatic supplying machine of fiber mixed feed is provided to mechanically supply total mixed ration which has low density by using a supplying machine comprising a mixing chain unit and a rotary wing unit. CONSTITUTION: A feed supplying machine comprises: two pairs of sprockets； a pair of rotary shafts connecting the sprockets in parallel； a pair of chains connected to the sprockets respectively； a rotary bar (321) comprising multiple protrusion pins connected to the chains； and a first motor connected to one of the sprockets. The rotary bar rotates with the sprockets and the chains by the operation of the motor. The two pairs of sprockets comprise: a pair comprising a first sprocket (330) and a third sprocket, and a pair comprising a second sprocket and a fourth sprocket. The pair of rotary shafts comprises: a first rotary shaft (331) which connects the first and third sprockets, and a second rotary shaft (341) which connects the second and third sprockets.본 발명은 사료 배합기； 상기 사료 배합기와 연결된 상차기； 상기 상차기와 연결되고 사료 배합기와 이격되어 형성된 이동레일； 및 상기 이동레일에 연결되어 상기 이동레일을 따라 이동하고 다수의 돌출핀을 포함하는 회전바를 구비한 사료 공급 장치；를 포함하여 섬유질배합사료를 사료통에 배급하는 사료 자동 공급 장치를 제공한다.
