A gutclamper includes two hard rod-like bodies having flexible belts on one ends, a joint at which the rod-like bodies are joined, and at least one through hole made in one of the belts. The gut tract is clipped by using the two hard rod-like bodies and the joint as a pivot. By clipping the gut tract by side surfaces of the rod-like bodies, it can be clipped while the width of the gut is pressed and widened, so that the gut is prevented from being excessively clamped and torn. In addition, the two rod-like bodies are made different in length from each other, a through hole is made in the belt connected to the shorter rod-like body, and the tip end of the longer rod-like body is fit into the through hole and locked, so that reliable clipping is realized without an excessive burden being placed on an operator.