The diagnostic process of the veterinary B-ultrasound system mainly uses veterinary B-ultrasound images, assisted by the clinical characteristics and medical history of the sick animal, etc. However, the diagnostic process of the veterinary B-ultrasound system can also complete the diagnosis without the clinical characteristics and medical history of the sick animal, and put forward a standard report. This is one of the main features of the veterinary B-ultrasound system. After the veterinary B-ultrasound images are processed by the system, the disease of the sick animal can be diagnosed based on the veterinary B-ultrasound images of the sick animal, and a standard report can be automatically formed for the veterinarian to choose and use. Of course, during the diagnosis process, the veterinarian can give his own reference opinions to the system for the veterinary B-ultrasound system to refer to during the diagnosis process. In addition, after the standard report is formed, the veterinarian can also make appropriate modifications and finally form a diagnostic conclusion. There are many animal diseases that may have one or more diagnostic conclusions. In order to resolve this conflict, the system arranges all possible conclusions into a full order. Once a matching conflict occurs, the diagnostic conclusion is inferred according to this order. The reason for resolving the contradiction in this way is relatively simple and practical. Because a sick animal may suffer from multiple diseases, for example, fatty liver, liver stones, etc. In this case, the diagnosis of the patient must match the conclusion of fatty liver, liver stones, and fatty liver and liver stones. Obviously in this case, the sick animal should be diagnosed with fatty liver and liver stones.