The invention provides a Fresnel device manufacturing method, which comprises the steps of 1) performing image 3D modeling; 2) carrying out quantitative processing on a modeled 3D image according to a Fresnel change law; 3) performing pixel microstructure simulation through equal-height projection or equal-width projection; 4) performing pixelate splicing; 5) photoetching the whole image according to a photoetching technology; and 6) transferring a template to an application material through a transfer process. The invention further provides a Fresnel device manufacturing device. Compared with the prior art, the Fresnel device manufacturing method and device can realize Fresnel devices with any shapes; the size is not limited, and a large-size Fresnel device can be manufactured by means of processes such as imposition; and the method is reduced according to the method.