Abstract: In this paper, the maglev vehicle/guideway dynamic model isestablished based on the EMS maglev vehicle and the elevated-guidewaytechnology, the PSD model for guideway irregularities is discussed, and theseparated iterative procedure and its corresponding numerical algorithm areapplied in simulations. The effect of random irregularity on dynamiccharacteristics of the maglev system is studied numerically, and the randomresponses of the vehicle and the guideway are analyzed. Finally therandom vibrationcharacteristics of the vehicle/guideway system are obtained. It is onthis basis that control suggestions are proposed for guideway irregularityin maglev.