A package substrate and a method of manufacturing the package substrate are disclosed. The method of manufacturing the package substrate may include stacking a second metal layer in which at least one hole is formed over a first metal layer, stacking a barrier layer over the first metal layer exposed in the hole and over the second metal layer, forming at least one bump by filling the hole with a conductive metal, stacking an insulation layer over the bump and forming a circuit pattern over the insulation layer, and removing the first metal layer, the second metal layer, and the barrier layer.