Aim To perform a meta-analysis of clinical and angiographic and CRP characteristics of women patients(age≤45) with acute myocardial infarction(AMI) that investigated the the correlation between female AMI,AMI risk factors and CRP of young women on the diagnosis of AMI predictive value. Methods 31 female patients were enrolled which comfirmed AMI by coronary angiography from January 2000 to June 2010.We collected their clinical data of AMI patients,coronary lesions,detection of CRP,lipids,fibrinogen,serum uric acid level and used logistic regression analysis to detect the relevance between risk factors and young women AMI. Results Compared with the same age male AMI patients,the women patient′s AMI family history,hypertension,diabetes,cardiogenic shock,CRP levels were significantly higher and their coronary angiography showed multivessel disease disease-based,LAD lesions associated with about 32.3% of AMI.The complete PCI revascularization rate and TIMI3 blood flow recovery of female patients were less than male which had the significant difference(P><0.05).Two group's 30-day hospital mortality(Or=1.23,95%CI:0.81-1.89) had no significant difference,but the young female patients hospital mortality(Or=1.15,95%CI:1.04-1.37) was higher and male patients with a higher one year mortality(Or=1.21,95%CI:1.07-1.47).The female patients who received the intervention hospital mortality(Or=0.96,95%CI:0.74-1.26)and the 30-day mortality(Or=1.07,95%CI:0.90-1.29) had no significant difference,but one year mortality rate was higher(Or=1.13,95%CI:1.01-1.29). Conclusion The women patients with AMI below 45 had higher proportion of hypertension,diabetes,AMI family history,cardiogenic shock,MVD,CRP,but the low rate of complete revascularization and higher one year mortality rate after PCI.Therefore it is necessary to do the best study of AMI treatment for female patients.