Abstract: 【Purpose/significance】This paper establishes a scientific and reasonable risk measure system of network rumors. Its pur⁃pose is to provide reference for the identification and control of network rumors and to build a healthy and safe network information en⁃vironment.【Method/process】Taking the risk measure of online rumors as a starting point, it uses the analytic hierarchy process to con⁃struct the risk evaluation index system of network rumors based on the four dimensions of event nature, event heat, event dissemination and event trend. This paper uses fuzzy comprehensive evaluation method to evaluate the risk level of 40 cases of rumor events. In this paper, fuzzy set qualitative comparative analysis method is used to explore different types of network rumor governance path.【Result/
conclusion】This study shows that the nature of high incidents is the core condition for high-risk occurrence of food, children and infor⁃mation security network rumors. The trend of high incidents is the core condition for high-risk occurrence of online rumors of food and Sino-US trade wars. This paper gives specific suggestions for each influencing factor.【Innovation/limitation】This paper provides a new research method for the risk measurement of Internet rumors, which further enriches the research system of network rumor risk measurement in theory. It has certain practical value to provide suggestions for the management and response of government network rumors. The follow-up study will further improve and improve the Internet rumor risk measurement index system.