The invention relates to a fungicide specially used for livestock and poultry, its production method and application. Take 0.01-5 parts of chlorhexidine acetate, 0.002-10 parts of polyethylene glycol octylphenyl ether, and 63-99.958 parts of tap water, put them into a container, mix and stir evenly, heat to 65-70°C, and then add benzene 0.02-12 parts of ammonium chloride, stir and heat to 92-94°C, then cool to 18-26°C, add 0.01-10 parts of glutaraldehyde and stir evenly, then adjust the pH value with sodium hydroxide or sodium bicarbonate , so that the pH value is 6-10, which is obtained. The invention is specially used for the sterilization and disinfection of livestock and poultry fur, oral cavity, endometrium, inner and outer vulva, breast, barn, air and object surface, as well as the treatment of fur and mucous membrane diseases. Compared with the existing sterilizing and disinfecting liquid, the present invention has the characteristics of many types of sterilizing, high sterilizing rate, simple manufacturing process, low cost, clear curative effect when applied to livestock and poultry, and safe and reliable use.