Abstract: An aspect of the present invention features a printed circuit board. The board can comprise a core layer in which an inner via hole (IVH) is formed, a first plating layer that closes one entrance of the inner via hole, leaving a remaining space in the inner via hole unfilled; and a second plating layer that closes the other entrance of the inner via hole, filling the remaining space. Also, the present invention provides a printed circuit board and a manufacturing method thereof that do not require filling an inner via hole with an insulating ink, and forming a conductive layer on the insulating ink. Therefore, the present invention can increase productive capacity and reduce manufacturing cost by simplifying the manufacturing process and reducing the lead time.