A solar cell module includes a plurality of compound semiconductor solar cells each including a compound semiconductor substrate, a first electrode part on a front surface of the compound semiconductor substrate, an insulating substrate positioned at a back surface of the compound semiconductor substrate, a second electrode part positioned between the back surface of the compound semiconductor substrate and a front surface of the insulating substrate, and an insulating adhesive attaching the insulating substrate to the second electrode part; a conductive connection member electrically connecting two adjacent compound semiconductor solar cells to each other; a conductive adhesive attaching the conductive connection member to a corresponding electrode part of the compound semiconductor solar cell; a front substrate positioned on the compound semiconductor solar cells; and a back substrate positioned below the compound semiconductor solar cells.