Abstract: 【Purpose/significance】A large number of online public opinions will be formed in the sudden epidemic environment,and ac?
curately grasping the spreading trend of online public opinion can provide a reference for the social security emergency mechanism in
the sudden epidemic environment.【Method/process】This article analyzes the mechanism of online public opinion information interac? tion in an outbreak environment from two aspects:the factors affecting the interaction of online public opinion information and the mechanism of online public opinion information interaction; and considering the characteristics of the spread of online public opinion, the new crown virus pneumonia Li Wenliang incident is taken as an example For example,the Elman neural network model is used to select the amount of network information,the total amount of sentiment,and the dominant sentiment as the main and auxiliary variables for predicting the trend of network public opinion transmission,to predict and analyze the trend of network public opinion transmission in an emergency situation,and formulate the prediction results Relevant social security emergency mechanism.【Result/conclusion】 The study proposes that five social security emergency mechanisms can be improved through the improvement of legal mechanisms re? lated to online public opinion,social participation mechanisms,information disclosure mechanisms,social supervision mechanisms,and accountability mechanisms,in order to provide the basis for maintaining social stability in a sudden epidemic environment.【Innovation/limitation】Future research can be combined with more relevant examples for analysis,so that the research conclusions can be further enriched and deepened.