Abstract: 【Purpose/significance】Public health emergency makes college students' health information seeking behavior more frequent.Exploring intention in the process of health information seek not only helps to understand college students' information needs and be‐havior.but also reveals their cognitive patterns,this as to provide a theoretical basis for the construction of health information service.【Method/process】The study used the diary method,mobile experience sampling method and the critical incident technique to obtain college students' health information seek data in public health emergency,and used the open coding,social network analysis method and markov chain to analyze health information seeking intention,intention transition,pattern of intention transition.【Result/conclu‐sion】The results showed that in public health emergency,aimless search was a typical way; Secondly.there were not only opportunistic
transitions and accessory transitions.but also iterative exploration,serendiption-driven and query reconstruction modes.Finally,the in‐tention was highly related to the topic,and the topic was significantly different under different intentions.【Innovation/limitation】This paper excavates the intention transition patterns from the perspective of continuity to reveal the users’cognitive process.The disadvan‐tage is that the sample type is simple relatively.