Objective To analyze the occurrence of ECG abnormalities and the cause of the young men from17 to22 years old.Methods The paper adds up and analyzes ECG of 663 young men.Results 164 cases of sinus arrhythmia(24.74%),158 cases of early repolarization(23.83%),29 cases of sinus bradycardia(4.37%),short P-R interval in 25 cases(3.77%),incomplete right bundle branch block in 26 cases(3.92%),10 cases of sinus tachycardia(1.51%),other 33 cases(4.97%).Conclusion The common abnormality of young men ECG are sinus arrhythmia,early repolarization,sinus bradycardia,short PR interval,incomplete right bundle branch block.