Machining method for plastic curved lens

The invention provides a machining method for a plastic curved lens. The machining method comprises the steps that a plastic plate to be machined is cut into a first state plate with a set product contour through a computerized numerical control machine (CNC); a set radian is machined along the edge of the first state plate by means of the CNC through a copying tool, a second state plate with a curved surface is formed, and a tool bit of the copying tool comprises an inner arc with the set radian; and surface treatment is conducted on the curved surface of the second state plate, and the plastic curved lens is obtained. By the adoption of the machining method for the plastic curved lens, plastic materials can be machined into the curved lens meeting the requirement for appearance design aesthetics, and the plastic curved lens is comparable with a glass curved lens. Time for machining the curved lens is shortened, and the material cost for machining the curved lens is reduced. 本发明提供了种塑胶弧面镜片加工方法，包括步骤：将待加工塑胶板材用数