A chip package is disclosed. The package includes a carrier substrate and at least two semiconductor chips thereon. Each semiconductor chip includes a plurality of conductive pads. A position structure is disposed on the carrier substrate to fix locations of the semiconductor chips at the carrier substrate. A fill material layer is formed on the carrier substrate, covers the semiconductor chips and the position structure, and has a plurality of openings correspondingly exposing the conductive pads. A redistribution layer (RDL) is disposed on the fill material layer and is connected to the conductive pads through the plurality of openings. A protective layer covers the fill material layer and the RDL. A plurality of conductive bumps is disposed on the protective layer and is electrically connected to the RDL. A fabrication method of the chip package is also disclosed.