To provide a falling weight impact tester having a falling weight stopping means, capable of restricting compression of a specimen by stopping drop of a falling weight in the middle, and dispensing with the replacement of the falling weight stopping means in each test.

This falling weight impact tester for performing an impact test of the specimen by the falling weight is equipped with a damper as the falling weight stopping means for restricting compression of the specimen by stopping the dropping falling weight in the middle. The falling weight impact tester has a characteristic, wherein the damper has a hydraulic cylinder equipped with a piston rod projecting upward, wherein a hydraulic oil is filled into an upper chamber on the upside of a piston and into a lower chamber on the downside thereof; a hydraulic oil communication circuit for communicating the hydraulic oil movably between the lower chamber and the upper chamber; a hydraulic oil narrowing means for restricting the moving quantity of the hydraulic oil in the hydraulic oil communication circuit; and a damper initial height resetting means for energizing so that the piston rod is positioned on the upper limit position, in a state where falling weight is not applied.