This application provides a laser device with an edge emitting source surface-mounted for emission and an electronic device. The laser device includes parts involved in the following: A bottom plate of a housing covers a bottom end of a housing body, and the bottom plate includes a first conductive region and a second conductive region apart from each other. An inner cavity of the housing body and the bottom plate form a mounting cavity with a light outlet opposite the bottom plate, and the mounting cavity is provided in a light source assembly. A side surface of the light source chip facing the light outlet is a light-emitting surface, and light is projected from the front of the light outlet. The technical solution provided by this application is to attach an edge emitting source chip onto the mounting side surface of the support member, so as to achieve frontward projecting.