Disclosed is an invention related to a myotome for sphincter muscles of teat for endoscope. The disclosed myotome for sphincter muscles of teat for endoscope comprises: a body a manipulation handle provided in the body a catheter connected to the body and made of a flexible tubular body and an operating part refracting an end portion of the catheter in multiple directions by operation of the manipulation handle. The myotome for the sphincter muscles of teat for endoscope according to the present invention is capable of bi-directional switching of the catheter depending on the movement of the manipulation handle, thereby minimizing the laparotomy and enabling an S-shaped pancreatic duct procedure.내시경용 유두괄약근 절개도에 관한 발명이 개시된다. 개시된 내시경용 유두괄약근 절개도는: 본체와, 본체에 구비되는 조작핸들과, 본체에 연결되고, 플랙시블한 관체로 이루어지는 카테터 및 조작핸들의 조작으로 카테터의 단부를 다방향으로 굴절시키는 작동부를 포함하는 것을 특징으로 한다.
