Abstract:Human instinct to avoid disasters and dangers is highly likely to make disastrous events responsive topics for so ̄ cial public. Dissemination of disastrous events information in Wechat friends′ circles is very likely to arouse cyberspace public sentimentꎬ and exerts pressure on the cyberspace " control of public sentiment" on disastrous events. Based on actu ̄ al case analyses of the characteristics and problems of disastrous event information dissemination in Wechat friends′ cir ̄ clesꎬ we conclude thatꎬ starting from maximally uniting social forces for disaster prevention and reductionꎬ we should read ̄ dress the disaster prevention appeal of Wechat user groupsꎬ and apply correct and scientific guidance on the dissemination of disaster event information to develop the Wechat friends′ circles into an information platform for disaster prevention and reduction as well as a cyberspace community for disaster knowledge learning.