Minimally invasive techniques in heart diseases;           

Hybrid procedure for heart diseases           

Beating heart surgery           

Cardiac Valve repair and replacement           

Coronary artery bypass grafting           

Surgical treatment of complex congenital heart diseases           

Surgical treatment of aortic dissection           

Heart transplantation and mechanical life support

Visiting scholar of Teikyo University school of Medicine, Tokyo, Japan in 1995; Guest Surgeon of German Heart Center, Berlin, Germany in 2003; Professor and Director of cardiac Surgery , General Hospital of Beijing Military Region, PLA for 14 years; Chairman of Society of Thoracic and Cardiovascular Surgery, Beijing Military Region, PLA for 12 years; Over 35 years clinical experience in more than 5000 cardiovascular operations. Having undertaken 8 research projects including National Natural science Foundation and key project of Beijing Science and Technology Commission with more than100 high-quality academic papers and 9 medical awards of PLA Science and Technology Commission.