A testing apparatus and testing method capable of efficiently evaluating the strength and durability of a lower-limb-type wearable motion assistance device without being affected by the gravity are implemented. Regarding the testing apparatus for evaluating the strength and durability by repeatedly applying an impact force to the lower-limb-type wearable motion assistance device, when a piston rod is excited at predetermined stroke length and operating speed in a state where a dummy doll wears the wearable motion assistance device, a reciprocable area of a stage relative to an impinging surface of a base is adjusted to make a measured value of a load cell exceed a predetermined reference value.