A method for forming a chip package is provided. The method includes disposing a semiconductor die over a carrier substrate and forming a protection layer over the carrier substrate to surround the semiconductor die. The method also includes forming a dielectric layer over the protection layer and the semiconductor die. The method further includes planarizing a first portion of the dielectric layer and planarizing a second portion of the dielectric layer after the first portion of the dielectric layer is planarized. In addition, the method includes forming a conductive layer over the dielectric layer after the first portion and the second portion of the dielectric layer are planarized.