Objective To study the TCM syndromes and diagnosis of patients after percutaneous coronary intervention（PCI）.Methods The clinical epidemiological method was adopted in the study and the symptoms and signs including the manifestations of tongue and pulse of 143 patients after PCI were recorded for the variable cluster analysis.Results The most of frequently appeared symptoms and signs of patients after PCI were chest pain

chest distress

lassitude

irritability

frequent micturition at night

obesity

dark lips and ecchymosis on the tongue.The 6 involved syndromes of the patients were qi deficiency with phlegm retention

kidney deficiency with blood stasis

liver qi stagnation

qi deficiency of spleen

qi deficiency of heart

and deficiency of both qi and yin.The diagnostic points of each of them were set up.Conclusion Six syndrome type could be classified in patients after PCI

and analysis base on diagnostic information set up the diagnostic points.