Abstract: A general multibody system model of luffing device of bucket wheel stacker/reclaimer was established. The equations of motion were formulated, and a simulation program was formed in this paper. As a computing example,dynamic simulation of the device of DQ 1000/1500·45 type stacker/reclaimer was carried out. To get moment of inertia and centroid of bodies,SUPERSAP 91 finite element analysis software was employed and good results were obtained.