It is mainly used for the qualitative detection of canine coronavirus nucleic acid in relevant samples of dogs, so as to assist in diagnosing whether dogs are infected with canine coronavirus. When dogs show clinical symptoms such as vomiting, diarrhea (the feces are usually watery or pasty), depression, and loss of appetite, and there is a suspicion of canine coronavirus infection, this test kit can be used for detection. It helps veterinarians quickly and accurately determine whether the dogs are infected with the virus, providing a basis for formulating subsequent treatment plans.