This paper studies China’s short-video in the mobile internet era in 2018 from four parts，including overview，focus，problems and trends. Overall，in 2018，short-video continued to grow strongly under strict regulation and the commercial process accelerated；the platform was in pattern of two superpowers leading，multi-players competing，and the tycoons were still vying to continue；The pyramid content pattern changed stably，the scale of KOL/web talents expanded；Regulation was strict，and governance tended to be normalized. Focusing on the industry，there were three distinct features：platform-led commercial acceleration，obvious progress in overseas development of the platforms，and MCN’s promotion to the transition from amateur UGC to professional production. However，in the rapid development of short videos，it’s necessary to be alert to entertainment brainwashing and work through business dilemma as soon as possible. Looking ahead to 2019，the short-video industry will be upgraded under the drive of technological innovation，and will develop forward to target more segmented Market.