The piezoelectric transformers (PTs) are greatly restricted in highpower applications due to the deficiency of its heat dissipation. The contact heat transfer equipment, which provides a good heat dissipation path for PT, has brought a revolutionary upgrade for the power density of PTs. However, this method brought contact friction and wear between the PT and heat transfer equipment surface. In this paper, we present a method inserting a 22 μm thick graphite paper between the PT and its heat transfer equipment to decrease the contact wear. The experimental result shows that the electrode wear using a graphite paper is 53% of that without graphite paper when continuously works for 80 h. The temperature rises of two heat dissipation equipments are almost the same. It provides some reference for slowing down the contact wear of electrode of piezoelectric transformer.