The invention discloses an enzyme solution and technology for processing waste polyester/cotton fabric. The enzyme solution is a mixed solution of laccase in white-rot fungi, catalase and amylase, and according to the volume content of each component of the enzyme solution, the laccase accounts for 25 parts to 35 parts, the catalase accounts for 25 parts to 35 parts, and the amylase accounts for 30 parts to 50 parts. The technology for processing waste polyester/cotton fabric through the enzyme solution include the steps of descaling, enzymolysis, alkaline hydrolysis, suction filtration, cotton filer recycling and chemical fiber recycling. According to the enzyme solution and technology for processing waste polyester/cotton fabric, waste blended fabric is processed through an enzyme method, the enzyme solution and technology are suitable for recycling waste blended fabric nonuniform in color and have catalytic bleaching effect on a subsequent reaction, sizing agents and dye on clothes can become loose and fall off more easily, the enzyme solution and technology play an important role in separately recycling the polyester/cotton blended fabric, the condition is mild in the reaction process, a solvent is free of poison and harm, the reacting time is short, the efficiency is high, fibers of different components are effectively separated, and the recycled cotton fiber of the same kind and the recycled chemical fiber of the same kind have important significance.