A suturing device that sutures tissues by releasing a suture unit includes: a first anchor and a second anchor included in the suture unit a hollow needle receiving the first and second anchors inside of the needle a tube which is fixed to a proximal end of the needle a wire inserted into the tube and the needle a first sheath through which the tube and the needle are inserted an operating portion main body fixed to a proximal end of the first sheath a slider fixed to a proximal end of the tube and configured to move forward and backward freely in a sliding manner with respect to the operating portion main body a slider control portion configured to regulate movement of the slider with respect to the operating portion main body at all times a handle portion provided in the slider and a deactivation member.
