The invention discloses a method for utilizing immobilized laccase for treating compound pollution of dyes and heavy metals in a water body. The method comprises the following steps of adding the immobilized laccase and an interbody matter into the water body containing compound pollution of the dyes and the heavy metals, and after vibrating at the constant temperature, carrying out solid-liquid separation to accomplish the treatment of the dyes and the heavy metals in the water body. The immobilized laccase is prepared through the steps of uniformly mixing kaolin and laccase, vibrating at theconstant temperature, washing, centrifugally separating, freezing, vacuum drying, and obtaining the immobilized laccase. Compared with the prior art, the method provided by the invention is good in removal effect, simple in treatment process, low in cost, free of secondary pollution, and capable of effectively removing the dyes and the heavy metals in the water body.