The Random vibration experiment is a common simulation test in the engineering experiment, while applying the vibrate quantity class, it will probably outrun vibration set extreme limit and result in breakage. Through enumerating a few key index signs of vibration pedestal directly influencing the random vibration experiment, and according to the vibration condition of product, the full thrust, the largest displacement and the maximum acceleration required to random vibration experiment were estimated. By contrasting with the vibration set extreme limit index signs, the vibration set was tested to be capable of carrying on that experiment.