The present invention aims to provide a method for manufacturing a solar cell module capable of improving positioning accuracy of solar cell elements relative to a light reflection plate. When a solar cell module is manufactured, a corrugated light reflection plate 4 is first prepared by bonding a thermoplastic resin film 7 to a plastic substrate 6. Subsequently, the light reflection plate 4 is set on a lower mold 10, and a thick resin sheet 12 made from an encapsulation resin is arranged on the light reflection plate 4. Then, vacuum suctioning and hot-press processing are performed sequentially, whereby a precursor assembly 13 is formed with the light reflection plate 4 and the resin sheet 12 attached together. Subsequently, a plurality of solar cell elements 2 is placed on an upper surface of the precursor assembly 13. Then, a thin resin sheet 14 made from the encapsulation resin is arranged on the solar cell elements 2, and a front surface plate 3 is arranged on the resin sheet 14. Subsequently, a cross-linking reaction of the encapsulation resin proceeds with a dry laminator, thus the respective solar cell elements 2 are laminated.