According to one embodiment of, a multilayer printed wiring board comprises an electronic part, a mount layer where the electronic part is mounted, a mount layer conductor pattern formed in the mount layer, an opposite layer containing the electronic part between itself and the mount layer, an opposite layer conductor pattern formed on the opposite layer and an electrically conductive connector contained between the mount layer and the opposite layer and electrically connecting the mount layer conductor pattern and the opposite layer conductor pattern to each other.