Bovine Astrovirus(BoAstV)is a single stranded RNA virus without a capsule.In 1978,BoAstV was first discovered in fecal samples of calves with diarrhea in the UK,and has since been reported in many other countries.It has a wide range of tissue preferences and can be detected in the intestines,respiratory tract,and nervous system.Due to the widespread presence of BoAstV in asymptomatic cattle and clinically infected cattle,and its co infection pattern with other viruses,the pathogenicity of BoAstV is still unclear.Currently,an increasing number of epidemiological studies indicate that BoAstV is associated with symptoms of calf diarrhea and encephalitis,and there is increasing attention to BoAstV in China.This article provides a review of the etiology,epidemiology,pathogenicity,co infection,diagnostic methods,and comprehensive prevention and control measures of BoAstV,providing reference for the research and comprehensive prevention and control of BoAstV.