In 2017，the overall development of China's tourism insurance industry is stable. There are many innovations such as “Internet + travel + insurance”. Tourism insurance cooperation is outstanding，product type is rich，sales channel is diverse. The application of big data and the promotion of all-domain tourism changed the way people travel and consume，and tourism insurance has ushered in an era of innovation and change. The paper analyzes the current situation of development of travel insurance in general，generalizes the general development characteristics，analyzes the main factors influencing the development of China's travel insurance in 2018，then forecasts and prospects the development situation of travel insurance in 2018. It is believed that in the age of mass tourism，the development of tourism insurance will break through the traditional patterns and present a new situation of cross-border integration and mode innovation. Insurance products need to be changed to meet the tourists' individualized and fickle demand for travel insurance. Tourism insurance should make full use of the big data and Internet platform to realize data sharing，platform co-construction and joint governance，so as to promote the healthy and stable development of China's tourism insurance industry.