Abstract: Ozone technology applied to sterilization and epidemic prevention has appreciable effects.Equipment of livestock green cultivation，once turned on，produced adequate amount of ozone that disperses immediately to every corner of breeding houses，killes viruses，bacteria，parasites and other contagious germs instantly.While doing so，ozone can prevent infection and spread of respiratory diseases.Moreover，unpleasant odors are removed and breeding environment is bettered.Ozone can also be used to purify the breeding water so that the livestock immune system are strengthened and incidences of bowel diseases can be decreased or eliminated，which as a result leads to green meat，egg，milk，etc.