PURPOSE: To supply many test pieces to a testing apparatus, one by one, automatically by installing boides to be tested in a stocker and by successively suppling the bodies to the testing apparatus by using a prescribed tested-body moving mechanism.

CONSTITUTION: Bodies A to be tested are piled up and contained in stocker B with extraction hole 6. Stockers B are contained in stocker box C with extraction hole 11 being aligned. Tested-body moving mechanism D having robot claws 16, arm 18, etc., is provided. In this constitution, bodies A to be tested in stocker B are guided successively to extraction hole 11 and taken out in level by being held between robot claws 16 of arm 18 having moved forth. Next, arm 18 rotates on fulcrum 19 by 90 degrees to hold the body vertical and further support 17 rotates on fulcrum 19 by 90 degrees to hold body A between gripping tools 20 of testing apparatus 21. Thos operations are all automated. Thus, test pieces are continuously supplied to the testing apparatus.