Abstract: Objective:To explore the clinical characteristics and nursing countermeasures of young patients with acute myocardial infarction(AMI). Methods:The clinical data of 49 young patients and 82 aged patients with AMI were analyzed and compared. Results:The two risk factors-family history of coronary disease and smoking in young group were significantly more common than those in elderly group(P 0. 05). The ratio of patients with hypertension and diabetes in young group was significantly lower than that in elderly group(P0. 01). Compared with aged patients, most young cases who got diseases were with clearly predisposing factors (P0.05),and the clinical manifestations were typical(P 0. 01),the complications were relatively fewer(P 0. 01 to P 0. 05). The case-fatality rate of young patients with AMI was lower and the prognosis consequences were better(P0. 05). Conclusions:The risk factors with coronary heart disease should be prevented in young patients with AMI as early as possible. Changing undesirable habits and customs is helpful for reducing the occurrence of AMI in young patients.