Shared mobility has shown an ever-increasing trend in the context of shared economy in the past decade and has become a new way out to such urban transport problems as congestion, pollution, last- and first-mile issue, etc. This paper offers a state of the art of this topic, beginning with a discussion on the definition and scope of shared mobility. It is then shown that shared mobility has received a great deal of attention from various sectors in the transportation research community as well as from varied levels of the government and practitioners. On the basis of these, the special issues are reviewed on this topic in international scholarly journals and those papers that review the literature on this topic are discussed. This paper also shares a set of suggestions on further development of shared mobility.