This study is to build a Xinjiang people registry and surveillance system for acute myocardial infarction(AMI) in2012-2015years to obtain real-world information about patient's basic information, patient characteristics, diagnostic test mode, the program of treatment and hospitalization outcomes including mortality, treatment complications, the cost of hospitalization and follow-up terminal events (death, major adverse cardiac events, minor adverse cardiovascular events)of xinjiang 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.