This study is to build a Chinese national registry and surveillance system for acute myocardial infarction(AMI) to obtain real-world information about current status of characteristics, risk factors, diagnosis, treatment and outcomes of Chinese AMI patients; And to propose scientific precaution strategies aimed to prevent effectively from the incidence of AMI; And to optimize the management and outcomes of AMI patients through implementation of guideline recommendations in clinical practice, and analysis and development of effective treatment strategies; And to create cost-effective assessment system.