The invention discloses a disinfectant. The disinfectant is prepared by mixing the following ingredients in percentage by weight: 0.4-0.6% of a yeast element, 3% of bamboo vinegar powder, 4% of sodium hexametaphosphate, 4% of propyl bromide, 4% of olive fruit oil, 0.2% of triclosan, 2% of triethanolamine polyoxyethylene, 0.35% of glyceride citrate, 0.25% of aloe powder, 15% of chlorhexidine hydrochloride, 0.6% of alkyl amino acetate, and the balance of deionized water. The disinfectant disclosed by the invention is reasonable in formula, low in cost, remarkable in sterilization and decontamination effects, and non-irritant to skin.