Abstract: Objective Based on the public opinions from internet big data about hypertension, the aim of this study was to analyze public focus and attention in order to provide evidence for the prevention strategies and propagate education of chronic non-communicable diseases in China.Methods The Global Health Information Platform was created by using web crawler and deep mining technology, which collected public opinions from more than 15 000 news media and social media websites. Public opinions about hypertension from Jan 1st 2016 to Dec 31st 2016 were collected by the platform. Bibliometric method, TF-IDF method and content analysis methods were used to analyze the hot topics of hypertension.Results The number of effective index on hypertension was 2 611 251. The public attention level was related to the season, major events, the level of regional economic development and other related factors. The content of public opinions about hypertension mainly focused on diet, nutrition, hypertension related diseases, medical treatment and other aspects. The risk factors of chronic, non-communicable diseases proposed by World Health Organization (WHO), like smoking, alcoholism, etc. were not in the top 60 hot words list.Conclusions The public opinions on internet indicates that the prevention education on hypertension is not sufficient. It is suggested that the primary prevention of chronic non-communicable diseases should be emphasized in the future. Effectively using the network data to improve all citizens' health literacy is of great significance to China's health development and prevention of non-communicable diseases.