An endoscopic suturing device for suturing a surgical site in the body using an endoscope. Each of first, second and third modules (100, 200, 300) has a needle which sutures the surgical site at the distal end thereof, a clamp which holds a suturing thread of the needle, and a clamp and cutter which cuts the suturing thread of the needle, and in which each of the first, second and third modules is rotated upward and downward and tilted forward and backward and to the left and right by a location control means (500) in order to adjust the location thereof. It is possible to simply move the modules to a suturing site and to simplify the operation of suturing the surgical site using the needle or the operation of binding and fixing the surgical thread and cutting the surgical thread, thereby making surgical operability excellent.