Objective To investigate the characteristics of information behavior in different stages of chronic diseases, Provide targeted interventions for changes in health behavior Methods a questionnaire survey was conducted in patients with chronic diseases Results different stages of chronic disease patients to obtain the characteristics of health information needs are different, Have statistical significance (P<0.01)。Objective to analyze the characteristics of information demand in each stage of health behavior change in patients with chronic disease, It can be more targeted to push the information needed and to provide a basis for strengthening the health intervention .