A suture device is provided with a longitudinal member a pair of grasping members a suture needle a power transmitting member an opening-closing operating portion a pair of needle locking portions having a fist needle locking member and a second needle locking member and locking or releasing the suture needle to or from the pair of grasping members a pair of linear members connected to the pair of needle locking portions a needle locking and operating portion that operates the pair of linear members a link member having a first end and a second end connected to the pair of linear members and rotatable support portions that rotatably support the link member.
