The invention discloses a method for treating polyvinyl alcohol production wastewater through white rot fungi. The method is characterized in that firstly, strains of white rot fungi are screened with an asynchronous training method, then transplanted to a slant culture medium for primary enlargement culture and transplanted to a culture solution for secondary enlargement culture, finally, the culture solution after cultivation is added to polyvinyl alcohol production wastewater and subjected to shake cultivation at the temperature of 35-37 DEG C for 3-4 days, and treatment of the polyvinyl alcohol production wastewater is finished. The method has the benefits as follows: the white rot fungi can effectively treat the polyvinyl alcohol production wastewater, and the removal rate of COD (chemical oxygen demand) Cr is high.