A concentrating solar cell module including; a base portion having a plurality of mounting regions for mounting solar cells and a plurality of lead electrodes for electrically connecting the solar cells with external electrodes; a support composed of a thermosetting resin, the support surrounding each of the mounting regions of the base portion; the solar cells mounted on the mounting regions; and a condensing lens molded above the mounting regions so as to encapsulate the solar cells, wherein a surface of the mounting regions of the base portion is plated, the condensing lens is molded with a transparent thermosetting silicone resin, and the support is joined to a surface of the base portion, the surface to which the support is joined is on the same side of the base portion as the surface on which the solar cells are mounted.