Abstract: A case of disease dog self-raised by pet interest group of College of Animal Science and Technology in Jiangxi Agricultural University was treated on February 5,2014. The dog is female and 6 years old. And its weight is 8 kg. Its clinical systems were as follows：loss of appetite and energy, vomiting,frequent micturition （occasionally discharging a few drops of red urine and a small amount of loose stool）, shortness of breath and so on. According to the clinical symptoms and imaging analysis, it was diagnosed as pyometra. After operation treatment, the diseased dogs gradually recovered. The treatment process of this case was mainly introduced, so as to help for the clinical treatment of canine pyometra.