Abstract: Outbound tourism has become an important part of Chinese tourism development, from the perspective of tourist flow of outbound tourism, help to grasp to Thailand tourist flow characteristics and formation mechanism, enrich the research contents and methods of China outbound tourism, help to optimize the Thailand tourism, promote tourism enterprises in Thailand cooperation and investment, joint development go to the Thai tourism market. This sharing community website through tourism, from January 2016 to December 2016 to Thailand tourist routes, construction China tourists travel to Thailand to flow to the network, through the social network analysis method of spatial structure and network characteristics of Chinese tourists to Thailand tourist flow network, reveal the spatial distribution characteristics of travel to Thailand and flow law, formation mechanism and the use of geographical detector the analysis of network of tourist flow, grasp the behavior characteristics of China tourists travel to Thailand and its driving mechanism. The study shows that: (1) China's tourism network in Thailand has a circular radial shape, forming a spatial structure of circular tourism flow with Bangkok as the core and multi-base point to the surroundings. The network density and the center potential are low, the network connection is relatively loose and the hot and cold spots are obvious. (2) Bangkok, Chiang Mai, Pattaya, Phuket and Baixian are among the Chinese tourists traveling to Thailand. The core of the network is close to the core area and the marginal area. (3) the key location of the network is to travel to Thailand tourism center; ④ Chinese tourists travel to Thailand is divided into five categories, which the number of marginal tourist destination too much; ⑤ from the overall point of view, tourism reception capacity, tourism resources, Tourism destination visibility, social security on the impact of Chinese tourists travel to Thailand tourism network is obvious, is the main factor influencing the formation of tourism flow network structure. On this basis, the formation of the Chinese tourists to Thailand tourism flow network formation mechanism.