Orchid strains with excellent traits must undergo virus detection procedures to determine that there is no virus infection before meristem culture can be cultured with a large number of replicating meristems, which has become a common practice in the international orchid industry. In order to make the virus screening work before parental breeding perfect, it is necessary to be able to fully grasp the information of the virus species, characteristics and diagnosis and detection technology of orchids infected with orchids, so as to establish a production process of orchid meristem seedlings that effectively avoid virus infection.