The invention relates to the technical field of dies, in particular to a closed cover die of a contact pedestal. The closed cover die of the contact pedestal comprises a die sleeve, a punch and a die cushion, wherein the die sleeve comprises an upper die cavity used for inserting the punch and a lower die cavity used for inserting the die cushion; the die cushion adopts an annular cylindrical structure and comprises a cylindrical inner cavity for forming a standard contact pedestal, an outer wall used for being matched with the lower die cavity and an upper end surface used for forming the lower end surface of a plate of the standard contact pedestal; the punch comprises a die holder, a bulge part for forming a groove of the standard contact pedestal is arranged at the lower part of the center of the die holder, and the die holder is provided with a lower end surface used for forming the upper end surface of the plate of the standard contact pedestal; and the upper die cavity is provided with an inner wall for forming a side surface of the plate of the standard contact pedestal. With the adoption of the closed cover die of the contact pedestal, the production efficiency and the material utilization of the contact pedestal can be improved.