Professor Y ang Y ufe i is the director and founder of the Oncology Department of X iyuan Hospital of China Academy of Chinese Medical Sciences. Professor Y ang Y ufei thinks highly of the treatment of breast cancer with harmonizing and dredging principle combining traditional Chinese medicine (TCM) and western medicine. She regards the basic pathogenesis of breast cancer is not only on traditional liver-kidney yin deficiency and liver-qi stagnation with spleen deficiency, but also three mechanisms which are breakdown of the normal physiological coordination be-tween the liver and kidney, heart and the kidney and Shaoyang. Professor Y ang gradually formed Tri-Traffic Dredg-ing Liver And Nourishing Kidney Formula base on tonification and purgation in combination. Y ang Y ufei thinks highly of combining treatment of TCM and western medicine, especially combined with endocrine therapy. Professor Y ang also pays much attention on immune function of patients and health education.