Objective To study the TCM syndrome characteristics and pathogenesis of coronary heart disease.Methods The 168 in-patients were examined by coronary arteriography and the syndrome differentiation was made for diagnosis of coronary heart disease or not.Results Of the 138 patients of coronary heart disease

the blood stasis syndrome（92.0%） and qi deficiency syndrome （81.9%）were most common

and their existing rate was obviously higher than that of the non-coronary heart disease group（P<0.05）.There was no significant difference in the composition of TCM syndromes in the angina group and acute myocardial infarction group（P>0.05）.Coronary heart disease took the combination of three syndromes as the most common pathologic condition

while qi deficiency and blood stasis were the basic combination of syndromes.Conclusion Qi deficiency and blood stasis are the basic patho- genesis of coronary

heart disease.