suturing device includes a long axis member, and a pair of gripping members, and suture needle, and a power transmission member, and the opening and closing operation portion, and a needle fixing the first member, and a needle fixing the second member, suturing a pair of needle fixing portion of the needle to release the fixing to or fixed to the pair of gripping members, a pair of linear member connected to the pair of needle fixing section, the needle operating the pair of linear members fixed comprising an operation unit, a first end and a second link end is fixed member to the pair of linear members, and a rotation support portion for supporting the link member rotatably, the.縫合器は、長軸部材と、一対の把持部材と、縫合針と、動力伝達部材と、開閉操作部と、針固定第一部材と、針固定第二部材とを有し、縫合針を前記一対の把持部材に固定するまたは固定を解除する一対の針固定部と、前記一対の針固定部に連結された一対の線状部材と、前記一対の線状部材を操作する針固定操作部と、前記一対の線状部材に第一端及び第二端が固定されたリンク部材と、前記リンク部材を回動自在に支持する回動支持部と、を備える。