[1] Medical data management and mining. The main research contents are the mining and application of medical big data and biological information data, trans-omics susceptibility research of complex diseases, medical demographic statistics, morbidity statistics and health statistics, and development and application of medical information system software.

[2] Epidemiology of chronic diseases. The main research content is the traditional and genetic epidemiology of chronic non-communicable diseases, such as, obesity and obesity-related diseases, diabetes, cardiovascular diseases.