The utility model discloses an end disk mold assembly for winding a cylindrical coil of a transformer. The end disk mold assembly comprises a plate and a sleeve. One end of the sleeve is connected with the edge of the plate. A winding shaft hole is formed in the center of the plate. Threaded holes are formed in the plate and located on the two sides of the winding shaft hole respectively. The edge of the plate horizontally extends outwards to form a baffle. The baffle is provided with a copper bar notch. The edge of the baffle comprises at least one section of straight line edge line tangent to the outer circumference of the sleeve. The plate is provided with a pair of locating plate holes which are aligned with the copper bar notch. The utility model further provides a winding former comprising the end disk mold assembly. The end disk mold assembly and an epoxy cylinder framework can be conveniently combined into the winding former, and the end disk mold assembly just needs to be combined with epoxy cylinder framework with different heights, and then the winding formers with different heights can be obtained; consequently, the production cost is greatly lowered.