An anastomotic device of the present invention includes: a first hand and a second hand for fixing a first anastomotic ring and a second anastomotic ring, respectively, and a coupling unit for coupling the first anastomotic ring and the second anastomotic ring by moving in parallel one of the first and second hands relative to the other of the first and second hands. The coupling unit includes: a driving body which moves in a roughly vertical direction relative to the moving direction of the first and second hands; a first horizontal moving body and a second horizontal moving body connected to the first hand and the second hand, respectively, and which move together with the first hand and the second hand along guide bars; and a first driving bar and a second driving bar connected to the driving body so as to be moved together with the driving body, and slide along a first slide hole and a second slide hole, respectively formed at the first and second horizontal moving bodies so as to move the first and second horizontal moving bodies.