Objectives: Social media has changed methods of communication in the medical profession.As part of a "doctor as communicator" strategy,Chinese medical professionals are actively embracing social media,which may have an impact on tense physician-patient relationships in China.This paper aims to examine a pattern of Internet access,Internet usage,and trust among Chinese medical professionals and further explores the reasons for these relationships on an individual level.Designs: A web-based questionnaire was designed,based on a media literacy model,and was divided into 3 dimensions: public information,general medical information,and specialty information.After a two-round pilot study,1001 physicians were included.Additionally,4 interviewees were chosen to participate in in-depth interviews and content analysis was performed.Data were analyzed using SPSS 25.0.Results: Findings showed that new media has become a major approach for medical professionals in China to retrieve and get access to various information.However,they still trust traditional media (n =1001,P < 0.01) and professional journals more (n =1001,P < 0.01).Internet access,usage,and trust were positively correlated (r-0.185-0.344,P < 0.01).Regarding usage habits,47.66% of the participating physicians would practice science popularization through their new media accounts and 71.23% would forward approved health information within their professional realm.A validated instrument can be provided for further related studies.Conclusions: Science popularization is a specific usage of new media among Chinese medical professionals,through which they have achieved new authority and empowered communication because of self-media.To some extent,physician-patient relationships in China can be improved because this online interaction is conducive to building harmonious and lasting offline physician-patient relationships.