Based on semiemperical London-Eyring-Polanyi-Sato (LEPS) potential energy surface (PES), stereodynamic properties of the reaction Sr+CH3I→SrI+CH3 in different initial reagent collision energies are studied theoretically by using the quasiclassical trajectory method. The results indicate that the collision energy of reagent has considerable influences on the orientations and alignments of angular momentum of products for the title reaction.