To reuse bean curd refuse as an effective source material by drying and sterilizing the bean curd refuse to enhance processability without materially changing the bean curd refuse.

The method for drying and sterilizing the bean curd refuse is not accompanied with a material change of the bean curd refuse. Microwaves are irradiated under a certain condition to the bean curd refuse containing 75-85% water to raise temperature of the bean curd refuse and evaporate water and sterilization effect is attained. The purpose is achieved without giving the material change of the bean curd refuse by controlling time of microwave irradiation. Conventional methods for drying the bean curd refuse give remarkable material changes and are not effectively used, but those are improved by the method. The method also contributes to reduce industrial waste.