The invention discloses a leveling/edge-milling machine of a heat radiator for transformers, and the machine provided by the invention comprises an input platform and an output platform, wherein the input platform and the output platform are respectively provided with a driving roller, and a leveling mechanism is also arranged between the input platform and the output platform; the leveling mechanism is composed of multiple groups of leveling compression rollers which are arranged in an up-and-down mode, the two ends of the upper leveling compression rollers are fixed on an adjusting seat by virtue of bearings, the adjusting seat is connected with an adjusting screw rod device arranged on a rack, the two ends of the lower leveling compression rollers are fixed on the rack by virtue of bearings, and one ends of the lower leveling compression rollers are respectively provided with a driving gear; each driving gear is connected with a dynamic mechanism by virtue of a chain or a connection gear; and the inlet of the leveling mechanism is arranged at the same height as the input platform. The leveling/edge-milling machine disclosed by the invention has the characteristics of convenience in operation, stability and reliability; and by using the leveling/edge-milling machine, the operating effect of subsequent assembling is greatly enhanced, and the quality of products is ensured.