Objective To explore the independent risk factors for the major cardiovascular events （MCVE） after percutaneous coronary intervention （PCI）. Methods Totally 123 coronary heart disease （CHD） patients successful treated by PCI were given standard anti-thrombosis treatment

and they were classified into the qi deficiency with blood stasis group （49 cases） and non-qi deficiency with blood stasis group （74 cases） according to TCM syndrome differentiation. Seven days later

all patients were examined with blood test to observe their platelet count

maximum platelet aggregation （MPA）

plasma hereditary false hemophilia factor vWF

platelet membranous glycoprotein Ⅱ b/Ⅲ a （GPⅡ b/Ⅲ a）

prothrombin fragment 1+2 （F1+2）

and fibrinogen （Fg）. Using Logistic regression analysis to screen out the independent risk factors for MCVE one year after PCI. Results The MPA

vWF

and GPⅡb/Ⅲa of the qi deficiency with blood stasis group were higher than those of the non-qi deficiency with blood stasis group （P<0.05）

while the platelet count

F1+2

and Fg of the two groups were without statistical difference （P>0.05）. Conclusion There still exists the obvious platelet activation and vascular endothelial injury in qi deficiency with blood stasis after PCI

. This is one of the independent risk factor for MCVE after PCI.