Bovine kobuvirus(BKV)is an unencapsulated,single-stranded,plus-stranded RNA virus belonging to the genus Cristaviridae and the family Picorniviridae.The virus is often mixed with other common viruses causing bovine diarrhea(bovine rotavirus,bovine coronavirus,bovine viral diarrhea virus,etc.),and is one of the pathogens that may cause bovine diarrhea.The virus has been detected in several countries and regions around the world,including China.In this paper,the etiology,prevalence and detection methods of BKV were reviewed in order to provide reference for the future research and control of the virus.