Questionnaire is an important means to collect information in health risk assessment. According to the focus and purpose of assessment, the required information will be different. Generally speaking, the main components of the questionnaire include: ① physiological and biochemical data, such as height, weight, blood pressure, blood lipid and so on; 2 lifestyle data, such as smoking, diet, exercise habits, etc.; ③ Personal or family health history; ④ Other risk factors, such as mental stress; ⑤ Information about attitude and knowledge (sometimes needed). This information can be filled in by individuals or provided with the help of medical staff. No matter how to obtain data, it is necessary to ensure its accuracy first, which is directly related to the subsequent risk calculation and its results. Therefore, we should distinguish and emphasize the responsibilities and obligations of all parties to provide questionnaire data.