The invention discloses a plastic part processing method, a plastic part, and an electronic product housing. The processing method comprises the following steps: (1) preparing injection moulding materials; (2) preparing wood sheets; (3) moulding: putting the wood sheets obtained in the step (2) into a moulding and punching mould, and forming the wood sheets into a required shape; (4) injection moulding: placing the wood sheets, which have been processed in the step (3), into an injection mould, using the injection moulding materials obtained in the step (1) to carry out injection moulding, combining the injection moulding materials with the wood sheets by an adhesive so as to obtain the plastic part composed of wood sheet and plastic. Special technologies are adopted to paint glue, oil ink, and adhesive onto the surface of wood sheets, thus the wood sheets are enabled to have the high temperature resistant and tensile tolerant properties, and in the post steps, the wood sheets are subjected to moulding and injection so as to be combined with plastic to obtain the plastic member. The prepared plastic member has wood-like appearance and quality, moreover the product structure is uniform, and thus the plastic member can be widely used in electronic products as an electronic product housing.