Abstract: Based on the daily precipitation data of 15 conventional ground observation stations in Longmen Mountain of Sichuan Province from 1970 to 2020 and the statistical data of 15 counties from 2015 to 2019, the tourism risk of rainstorm disasters in Longmen Mountain of Sichuan Province was evaluated from four aspects : the hazard of disaster-causing factors, the vulnerability of disaster-bearing body, the sensitivity of disaster-pregnant environment and the ability of disaster prevention and mitigation based on chromatography analysis method and natural disaster risk degree. The conclusions are as follows: (1) The hazard of rainstorm disaster-causing factors in Longmen Mountain of Sichuan Province presents the characteristics of “low mountain and high plain”.Dujiangyan has the highest hazard of disaster-causing factors and Pingwu has the lowest hazard; (2) The vulnerability of tourism risk bearing body shows the characteristics of “ high mountain and low plain”, the vulnerability of the disaster-bearing body in Lixian County is the highest and that in Jiangyou County is the lowest. (3) The sensitivity of disaster environment is characterized by ' high mountain and low plain '. The sensitivity of disaster environment in Pengzhou is the highest and that in Beichuan is the lowest. (4) The ability of disaster prevention and mitigation is characterized by ' weak mountain and strong plain '. The ability of disaster prevention and mitigation in Wenchuan is the weakest, and that in Jiangyou is the strongest. (5) The comprehensive evaluation is characterized by ' high mountain and low plain '. The tourism risk of rainstorm disaster in Lixian County is the highest, and that in Chongzhou is the lowest, which is consistent with the actual rainstorm disaster.