A forming method for a heating element of an electronic cigarette and a manufacturing method for an atomization assembly are provided, the forming method comprises coiling a heating wire into a heating coil, dividing the heating coil into sections including a plurality of heating sections and connecting sections; providing a deposition preventing layer on an external surface of the heating section; electroplating the heating coil, coating outer peripheral faces of all of the connecting sections of the heating coil with coatings having an electrical resistivity lower than that of the heating wire; removing the deposition preventing layer; and cutting the heating coil electroplated. The present application makes the manufacturing process of the heating element and the atomization assembly continues automatically, the production efficiency is improved, the resistance of the heating element or atomization assembly manufactured is more stable, and the product quality is higher.