Abstract:Objective: To analyze the law that famous old doctor of traditional Chinese medicine (TCM) treat angina pectoris using Chinese drugs, explore the method that well-known doctor‘s experience was arranged. Method: Typical medicine case 115 of angina pectoris were collected and well-known doctor coronary heart disease database making a diagnosis was set up, then used association rules to analyze well-known doctor‘s prescription compatibility law curing coronary heart disease. Result: In 175 kinds of traditional Chinese medicinal used, the compatibility among blood-activating drug, phlegm-resolving drug and tonic was the most frequently used medicinal groups, Gualou Xiebai decoction, Huoxue decoction and Shengmai powder were the basic formula that well-known doctor treat coronary heart disease, matching and employing between the three form the universal law that the well-known doctor used medicine. Conclusion: Drug groups drew with association rules that well-known doctor treat coronary heart disease reacted well-known doctor‘s therapeutic thought of curing, would provide the method reference to research in the hereafter.