Objective To compare the cardiac ultrasound, serum markers and prognosis of patients with viral myocarditis with arrhythmia in patients with noncardiac arrhythmia.Methods 93 patients with viral myocarditis treated in our hospital from April 2011 to February 2016 were divided into noncardiac arrhythmia group (N = 32) and arrhythmias group (n = 61). The cardiac ultrasound and serum markers, the incidence of clinical symptoms, intraaortic balloon pacing and temporary pacemaker use, and the prognosis were observed. Results Left ventricular ejection fraction, end systolic volume, enddiastolic volume, left ventricular mass, systolic left ventricular diameter, systolic ventricular septal thickness, diastolic ventricular septal thickness, aortic diameter and left ventricular enddiastolic of noncardiac arrhythmia group were different from that of arrhythmias group (P＜0.05). There were significant differences in serum levels of creatine kinase isoenzyme and Creactive protein between arrhythmia group and noncardiac arrhythmia group (P＜0.05). The clinical manifestations including chest tightness, syncope, chest pain, systemic symptoms, respiratory symptoms and gastrointestinal symptoms of arrhythmia group were significantly higher than that of noncardiac arrhythmia group (P＜0.05). The Balloon counterpulsation rate and temporary pacemaker use rate of arrhythmia group were significantly higher than noncardiac arrhythmia group (P＜0.05). The mortality rate of arrhythmia group (18.75%) was higher than those in noncardiac arrhythmia group (1.64%)(P＜0.05).Conclusion Viral myocarditis with arrhythmia patients have a higher mortality than that without arrhythmia.