The mobile health is one of the most significant changes currently. This article well defines the concept，category and scope of mobile health and detailed introduces its four stages：APP stage，Connected Health stage，IoT stage and intelligent doctor stage，as well as the mobile health experience five kinds of business modes as charges to drug companies，to doctors，to hospitals，to health insurance companies and to consumers separately. Finally，the article points out several field which mobile health gets potential in and mobile health has tremendous development opportunities in the future.