According to the harm of feline distemper virus to cats, the first treatment principle is fasting and watering, so as not to aggravate the irritation to the gastrointestinal tract of cats. And give relevant biological agents to inhibit the reproduction of feline distemper virus, and give necessary symptomatic and supportive treatment. Cats infected with feline distemper virus will experience symptoms such as mental discomfort, loss of appetite, vomiting, diarrhea, increased nasal discharge, blood in the stool, and convulsions. Currently, the cure rate for feline distemper is very low, and it is mainly prevented by vaccination. Therefore, it is recommended that the owner follow the vaccination procedure to vaccinate the cat, so that the cat's body can produce protective antibodies against the invasion of feline distemper virus.