The invention belongs to the technical field of farm equipment and particularly relates to a farm grass seed spreader. The farm grass seed spreader reduces labor and realizes automatic grass seed spreading and a wide spreading distance. The farm grass seed spreader comprises a frame, wheels, a first bearing, a diesel engine, a motor, a first pulley, a mounting plate, a second pulley, a first bevelgear, a first belt, a first shaft, a second bevel gear, a round wheel, a pin, a slotted pore plate, a second bearing, a second shaft, a spreading head, a first vertical support plate, a second vertical branch plate, a funnel, a discharge tube and a telescopic tube. The farm grass seed spreader reduces labor, realizes automatic grass seed spreading and a wide spreading distance, also realizes material control and automatic stirring and has the the characteristics of convenient use, safe use, simple operation, low manufacturing cost and fast spreading speed.