According to one embodiment, there is provided an optoelectronic integrated package module including a silicon interposer that has an electrical interconnection and an optical waveguide, and formed on a silicon substrate, an optical semiconductor element formed in the silicon interposer, and electrically connected to the electrical interconnection and optically coupled to the optical waveguide, an electrical circuit element formed in the silicon interposer, and electrically connected to the optical semiconductor element, and a semiconductor integrated circuit chip mounted on the silicon interposer, and electrically connected to the electrical circuit element. The semiconductor integrated circuit chip transmits an electrical signal to the optical semiconductor element via the electrical circuit element or receives an electrical signal from the optical semiconductor element via the electrical circuit element.