To provide a method for producing a recycled resin product without using a special manner and without deteriorating the impact resistance and drawing resistance of the resin and the appearance of the product.

In the method for producing the recycled resin product, 1-50% of resin pieces for recycling obtained by crushing a thermoplastic resin product with a coating film and removing the coating film from the product and 50-99% of a new thermoplastic resin composition of a similar type to the resin pieces are melted and mixed through a screw until the residual coating films of the surfaces the resin pieces are dispersed and cooled and solidified in a molding mold. The method is used for producing a resin component for a car.