Abstract: 【Purpose/significance】The effective organization of online health information is of great social value in improving the physi⁃cal fitness of the whole people.【Method/process】Based on the analysis of health information topic, association relationship and re⁃source indexing,an online health information tag semantic mining model based on the topic graph was constructed,and the health infor⁃mation tag topic graph was visualized.【Result/conclusion】Based on topic maps of online health information label semantic mining model can accurately find the deep relationship between online health information and label,can better reveal the semantic relation⁃ships of online health information tags to provide users with information visualization browsing and navigation to promote health infor⁃mation organization effect,help users to health information【. Innovation/limitation】This paper combines theme map with health informa⁃tion label to improve the efficiency of health information retrieval and utilization,but there are also shortcomings in this paper,such as small label sample size and sample range,lack of participation of professional medical researchers.