the present invention relates to a tubular suture reinforcement material suitable for use in automatic suturing devices that are widely used in surgical operations , etc . more specifically , the present invention relates to a tubular suture reinforcement material with which a tubular shape is easily obtained to thereby increase its productivity , and removal of thread is easily achieved . the present invention aims to overcome drawbacks such that sheet - like materials joined by the conventional temporary adhesion easily separate from each other , and the tubular suture reinforcement material manufactured using a running stitch requires a lot of time and skill , and removal of the thread is difficult depending on the kind of sheet - like material , sewing pitch , etc . more specifically , the present invention relates to a tubular suture reinforcement material for an automatic suturing device , wherein both ends of one or two sheet - like materials are sewed using a chain stitch with a single thread to form a tubular shape , and one or two thread ends at one or two sewing ends are suitably extended .