ObjectivesTo evaluate the quality of health information on diabetes in Chinese internet, so as to understand the current status of diabetes network health information, and provide reference for improving and enriching the three-level prevention of diabetes.MethodsThe three most common Chinese search engines: Baidu, Sogou and Haosou Search were searched with the keywords " diabetes” and " diabetes treatment”, using the health information evaluation tool DISCERN score to evaluate the quality of the information, and the integrity and accuracy of information content were evaluated with reference to the " Guidelines for the Prevention and Treatment of Type 2 Diabetes in China (2017 Edition)” issued by the Chinese Diabetes Society of Chinese Medical Association.ResultsA total of 300 links were accessed and included in 17 websites. The DISCERN review showed that only 1 item's average score exceeded 3 points. According to website content score, the excellent part accounted for 11.7%, the good part accounted for 35.2%, the fair part accounted for 47.1%, and the poor part accounted for 5.8%. 50% of websites contained error messages, and the subject of the most error-prone information was diagnosis and treatment. There was a positive correlation between the content score and the DSCERN score in the credibility score and the verbosity score (r=0.71, 0.73, P<0.001). The websites were evaluated by attributes, and the quality evaluation of diabetes-related information in some general-purpose websites was higher than that of diabetes specialist websites.ConclusionsThe quality of diabetes health information on Chinese websites is insufficient. It is necessary for China to establish a web-based information platform for diabetes. China has not yet formed a unified network health information evaluation standard in line with its national conditions. The key to solving the problem lies in the collaboration between professional health personnel and website developers.