The utility model relates to an overvoltage protection for transformer neutral point, the transformer is including the mount that is equipped with the transformer body, overvoltage protection is including setting up just be equipped with graphite electrode's fixed subassembly on the neutral point of transformer, the mount includes fixing base and damper, graphite electrode be one end with fixed subassembly links to each other, and the other end is arc end face's cylindrical graphite column. The utility model provides a pair of an overvoltage protection for transformer neutral point to protection transformer neutral point is not damaged, is not simplified structure, life -saving, improvement application scope by the overvoltage.