Objective To analyze the information transmission characteristics of high-influence health TikTok accounts,so as to provide a basis for improving the influence of nursing information services.Methods Based on the Douyin Communication Index of Qingbo big data Tik-Tok accounts,17 high-impact health TikTok accounts were selected,and the tipping point theory was used as the analytical framework to ana-lyze the information transmission characteristics of high-influence health TikTok accounts.Results Among the high-influence health TikTok accounts,there was a lack of independent nursing information service TikTok accounts.The disseminator of high-influence TikTok accounts had the characteristics of individual characters.The popular short videos of high-impact health TikTok accounts showed remarkable characteristics in the adhesion factor law,the content was rich and the form was diverse,and the video duration was mostly 15 s to 90 s.The popular health short videos of high-impact health TikTok accounts conformed to the law of the environmental power.Conclusion The strategy of improving nursing information services includes focusing on cultivating individual figures in nursing information dissemination,enhancing the adhesion of nursing information services and using the power of the environment,and enhancing the influence of nursing information services.