To provide an impact test apparatus that enables continuous hammering.

In the impact test apparatus 10, having a support 12 provided on a substrate 11 and a pendulum arm 22 supported on the support 12, and having an impact piece 23 provided to its leading end and made swingable in the vertical directions, the base part of the pendulum arm 22 is brought into slide contact with the rotary cam 17 provided to the support 12 in a rotatable manner, and the rotary cam 17 is made to rotate by only the required number of times, in one direction, by the rotational drive means 13 provided to the support 12.