A solar cell module includes a plate-shaped solar panel including a plurality of solar cells arranged on same plane; a plate-shaped cell protection member that covers the plural solar cells that are arranged on the same plane; and a surface protection member that is bonded onto a top surface of the cell protection member; an outer frame that supports a circumference of the solar panel; and a brace having rigidity against bending and that supports a center area of a back surface of the solar panel in such a manner that both ends of the brace are joined to each of two opposed positions of the outer frame. An initial tension is provided to the brace.