This invention discloses a method for producing laccase by fungi co-culture. The method comprises: inoculating the suspension of Trametes sp. AH28-2 into a fermentation culture medium, culturing at 22-37 deg.C for 1-4 days, adding the suspension of Trichoderma sp. ZH1, culturing for 5-10 days, and separating to obtain laccase agent with living laccase content 6,000 U/L. The culture medium is liquid culture medium, and mainly comprises certain amounts of carbon source, nitrogen source, phosphates of potassium and sodium, sulfates of copper and iron, adenine and vitamin B. The method avoids aromatic compounds and heavy metal ions to induce, thus is safe and environmentally friendly, and has high and stable laccase activity.