Abstract: Research progress in the preparation of polystyrene/graphene nanocomposites has been reviewed, including solution intercalation,micro-ballon cover reduction,in situ micro-emulsion polymerization,picking micro-emulsion polymerization,click chemistry, atom transfer radical polymerization. The electrical, thermal,rheological,and mechanical properties of the nanocomposites have been summarized.Finally some prospects of the applications in polystyrene/graphene nanocomposites have been put forward.