Processing method and system of lens magnification converter

The invention provides a processing method and system of a lens magnification converter, the lens magnification converter comprises a first rotating module and a second rotating module, the processing method comprises the following steps: installing the second rotating module with a plurality of processing areas on the first rotating module with a first circular through hole in a manner of rotating relative to the first rotating module; one machining area is aligned with the first circular through hole; and under the condition that the second rotating module and the first rotating module are relatively fixed, the first rotating module is fixed to a machining tool with a working table top, the machining tool is used for machining the second rotating module so that a second circular through hole can be formed in the machining area, and the axis of the second circular through hole coincides with the axis of the first circular through hole. According to the processing method and system disclosed by the invention,