Provided is a mulching machine that can minimize a load applied to ground wheels and a portion behind the ground wheels while maintaining a suitable weight balance in a traveling direction of a machine body even if a film roll increases its weight. The mulching machine has a machine body 5 including a tilling unit 6 performing tilling, a ridge forming unit 7 forming a ridge 10 with the tilled soil, a mulch film laying unit 8 drawing a mulch film 82 from a film roll 81 and laying it over the ridge 10, and ground wheels 9 supporting the machine body 5, the tilling unit 6 and the ridge forming unit 7 being arranged in this order from the front in the traveling direction, the film roll 81 being positioned such that its center of gravity does not overlap the ground wheels 9 and is located forward of the ground wheels 9 in the traveling direction.