A semiconductor package and a method for fabricating the semiconductor package are provided. The semiconductor package includes a base layer, a plurality of conductive pillars, a semiconductor element, and an encapsulation. The base layer has opposing first and second surfaces and a receiving part. The conductive pillars are formed on the second surface. Each of the conductive pillars has first and second terminals, and the second terminal is distant from the second surface of the base layer. The semiconductor element is received in the receiving part, and has opposing active and passive surfaces, and the active surface is exposed from the first surface. The encapsulation is formed on the second surface, encapsulates the conductive pillars and the semiconductor element, and has opposing third and fourth surfaces, and the second terminals of the conductive pillars are exposed from the fourth surface. The semiconductor package is provided with the conductive pillars having fine pitches.