▎ 摘　　要

The discovery of graphene has renewed the interest in the wettability of graphitic materials. Although graphene and graphite are long believed to be hydrophobic, recent studies have challenged this long-held belief. In addition, the unique structure of graphene also enabled new avenues to manipulate their wetting properties. This review highlights recent studies in these research areas with a special focus on the following topics: (1) intrinsic wettability of graphene; (2) manipulate the wettability of graphene by surface engineering; (3) theoretical studies of water-graphene interaction; and (4) cleaning of graphene.