Abstract: At present，as residents increased demand for meat，eggs and milk，scale of livestock and poultry breeding industry is expanding year by year，and the breeding density is higher and higher.But restricted by breeding environment，in the process of livestock farming，morbidity and mortality of livestock and poultry is high，quality of livestock and poultry products drops，and it causes livestock and poultry breeding industry to overall decline.Emergence of livestock and poultry house air electric purification and disease prevention system fundamentally solved problems caused by environmental safety and human and animal comorbidities.The system can kill bacteria in the form of physical，effectively prevent and control inner gas to spread diseases.It has significant economic benefit and dual advantages of environmental protection.