Antisepticize and mildew preventive of bamboo wood material

The invention provides an anti-septic and anti-mildew agent for bamboo and wood, which is obtained by adding zinc compounds, copper compounds and cationic surfactant to substrates. The invention adopts bamboo vinegar, wood vinegar and grass vinegar as main ingredients and is composed by water-insoluble inorganic compounds to prepare biological (of a chemical type) wood preservative and can also be added with ammonia, ammonium salt or nitrogen compounds of the ammonia to increase the solubility. The invention has the advantages of strong resistance of leachability (wastage rate is less than 2 percent), low moisture absorption, no frosting, low toxicity and good effect of anti-sepsis and anti-mildew, and can also be applied to discoloration of timber or bamboo.