This research mainly discussed the processing temperature and the processing velocity influence on the deformation resistance and ductility of Mg_<96>Zn_2Y_2, a kind of high-strength magnesium alloys. Therefore, compression deformation experiments of column were performed. We also examined the variation of deformation resistance and ductility of this kind of magnesium alloy. Moreover, the dependence on deformation temperature and deformation speed of this magnesium alloy was evaluated as well.