It is an object of the present invention to provide a suture reinforcement material for an automatic suturing device, which has excellent loadability into an automatic suturing device and excellent cuttability with a cutter.The present invention is a suture reinforcement material for an automatic suturing device, which comprises a tubular body comprising an inner layer and an outer layer, the inner layer comprising a nonwoven fabric, the outer layer comprising a foamed polymer, wherein the nonwoven fabric of the inner layer and the foamed polymer of the outer layer are integrated together.