In February 2020，it was reported in Hongkong，China，that a pet dog kept by a patient confirmed with coronavirus disease 2019（COVID-19）was infected with severe acute respiratory syndrome coronavirus 2（SARS-CoV-2），which caused the concern about canine coronavirus. In order to fully understand the study on canine coronavirus，prevent and control the disease，the etiology and epidemiology，clinical symptoms，measures of diagnosis and control were summarized in the paper. The canine coronavirus was widely distributed in dog populations，mainly including canine enteritis coronavirus of Alphacoronavirus and canine respiratory coronavirus of Betacoronavirus. The canine coronavirus was with poor pathogenicity，which could cause slightly clinical symptoms，but would be more serious and likely to mutate to new mutant strains when mixed infection of it with canine parvovirus and canine distemper virus occurred，with the risk of increasing pathogenicity. At present，the detection methods for canine coronavirus were mainly including pathogen detection，serological detection，and molecular biological detection methods such as RT-PCR，qRT-PCR and Nano PCR. Canine coronavirus could be controlled by a series of comprehensive measures including vaccination，scientific feeding and management，disinfection and symptomatic treatment，etc. It was still unclear whether the virus could be spread to other animals or human via the infected dogs，although dogs could be infected with SARS-CoV-2. Therefore，it was necessary to strengthen study on pathogenic ecology as well as monitoring and early warning against the virus.