Fabricating method of package substrate

There are provided a package substrate and a method fabricating thereof. The package substrate includes: a wafer having a cavity formed in an upper surface thereof, the cavity including a chip mounting region; a first wiring layer and a second wiring layer formed to be spaced apart from the first wiring layer, which are formed to be extended in the cavity; a chip positioned in the chip mounting region to be connected to the first wiring layer and the second wiring layer; a through-hole penetrating through the wafer and a via filled in the through-hole; and at least one electronic device connected to the via. Accordingly, a package substrate capable of having a passive device having a predetermined capacity embedded therein, while reducing a pattern size and increasing a component mounting density, and a method fabricating thereof may be provided.