To provide a dynamic loading testing method capable of accurately measuring axial force of an impact object such as a pile, and capable of highly accurately calculating bearing power over the whole of the impact object.

This dynamic loading testing method calculates the bearing power of the impact object/a ground system from its analytical data, by measuring a shock wave propagating in this impact object, by impacting a head part of the impact object such as the pile by using a hammer. The method calculates the bearing power of the impact object/the ground system, by integrating the analytical data on the shock wave measured by impact of respective times, by measuring the shock wave with every impact of the respective times, by applying a plurality of times of impacts to the impact object being a test object.