Professor Shi Dazhuo summarized the pathogeny of angina pectoris as insufficiency of heart yang, congealing cold and qi stagnation, phlegm-turbidity, and blood stasis obstructing blood vessel according to TCM theories and clinical practice combining with modern pathophysiology studies. The treatment priciple of replenishing qi and nourishing blood, activating blood and resolving stasis, diffusing impediment and activating yang was put up based on the former theory. And the treatment should be adjusted accoring to the stages of the disease. He also summarized the principle of medication to promote the clinical efficacy.