Copolymerization of ethylene and α-olefin using rac-Et[Ind]2ZrCl2/MAO catalyst embedded onto polystyrene was examined. The embedded catalyst was prepared by polymerizing a small amount of styrene with rac-Et[Ind]2ZrCl2. The catalytic activities of the embedded catalyst were higher than those of the homogeneous catalyst regardless of comonomer type and the characteristic of the active sites of the embedded catalyst was not affected during the embedding process. Based on the DSC and NMR analyses of the produced copolymers, it was thought that the embedded catalyst had similar or slightly better comonomer incorporation ability. Furthermore, the copolymers produced by the embedded catalyst had higher bulk densities and better particle morphology than those by the homogeneous catalyst.