The manufacturing method of spring washers is characterized in that the method includes: a method of using a linear steel material with a circular cross-section with high hardness and toughness to undergo secondary high-precision special-shaped rolling processing, a winding processing method consisting of a pre-processing step and a post-processing step provided with a support to maintain the shape of a continuous spring washer blank wound into a coil shape, a method of cutting the continuous spring washer blank in a coil shape that is rotated at every pitch, and then performing a blanching heat treatment on the single spring washer blank that has undergone the above series of mechanical processing, and then electroplating as needed.