▎ 摘　　要

Graphene is the first free-standing two-dimensional atomic crystal which has been found so far. Graphene is the building block for the sp(2) carbon materials, such as zero-dimensional fullerenes, one-dimensional carbon nanotubes and three-dimensional bulk graphite. Also, it exhibits many remarkable electronic and mechanical properties. So it has become one of the hottest topics in the area of materials science and condensed-matter physics nowadays and also attracted more and more attention from scientists in diverse fields, such as chemistry, materials and so on. In this paper, we briefly introduce the research advances of graphene in recent years, including the preparation, reduction, chemical modification, application, perspectives and so on.