A solar cell module (2, 4) comprising: a first solar cell (10, 10A); a second solar cell (10, 10B) disposed with a gap from the first solar cell (10, 10A) in a first direction, wherein each of the first and second solar cells (10, 10A, 10B) includes a photoelectric conversion body with a front-side collector electrode and a back-side collector electrode each of which is formed of conductive paste; a light reflection member (30, 30A, 30B, 300) provided between the first solar cell (10, 10A) and the second solar cell (10, 10B) in the first direction orthogonal to a thickness direction of the first solar cell (10, 10A), a front protective member and a back protective member, a front-side bonding layer and a back-side bonding layer, wherein the first and second solar cells (10, 10A, 10B) and the light reflection member (30, 30A, 30B, 3000) are sandwiched between the front-side bonding layer and the backside bonding layer between the front protective member and the back protective member, wherein the light reflection member (30, 30A, 30B, 300) includes an insulating member and a conductive light reflection film on the insulating member in the thickness direction, wherein the light reflection member (30, 30A, 30B, 300) does not electrically connect the first solar cell and the second solar cell, a thickness of the light reflection member (30, 30A, 30B, 300) is larger than a thickness of the first solar cell (10, 10A) in the thickness direction, the conductive light reflection film is positioned outside the first solar cell (10, 10A) in the thickness direction, wherein one end of the light reflection member (30, 30A, 30B, 300) overlaps as seen in the thickness direction with an edge of one of a front or back surface of the first solar cell (10, 10A) in such a manner that the one end of the light reflection member (30, 30A, 30B, 300) is in direct contact with the edge of the one of front or back surface of the first solar cell (10, 10A) in the thickness direction, and wherein the insulating member has a multi-layer structure including a resin base material and an adhesive layer, and the conductive light reflection film is formed on the resin base material on the adhesive layer, wherein a thickness of the adhesive layer is larger than the thickness of the first solar cell (10, 10A). a first solar cell (10, 10A); a second solar cell (10, 10B) disposed with a gap from the first solar cell (10, 10A) in a first direction, wherein each of the first and second solar cells (10, 10A, 10B) includes a photoelectric conversion body with a front-side collector electrode and a back-side collector electrode each of which is formed of conductive paste; a light reflection member (30, 30A, 30B, 300) provided between the first solar cell (10, 10A) and the second solar cell (10, 10B) in the first direction orthogonal to a thickness direction of the first solar cell (10, 10A), a front protective member and a back protective member, a front-side bonding layer and a back-side bonding layer, wherein the first and second solar cells (10, 10A, 10B) and the light reflection member (30, 30A, 30B, 3000) are sandwiched between the front-side bonding layer and the backside bonding layer between the front protective member and the back protective member, wherein the light reflection member (30, 30A, 30B, 300) includes an insulating member and a conductive light reflection film on the insulating member in the thickness direction, wherein the light reflection member (30, 30A, 30B, 300) does not electrically connect the first solar cell and the second solar cell, a thickness of the light reflection member (30, 30A, 30B, 300) is larger than a thickness of the first solar cell (10, 10A) in the thickness direction, the conductive light reflection film is positioned outside the first solar cell (10, 10A) in the thickness direction, wherein one end of the light reflection member (30, 30A, 30B, 300) overlaps as seen in the thickness direction with an edge of one of a front or back surface of the first solar cell (10, 10A) in such a manner that the one end of the light reflection member (30, 30A, 30B, 300) is in direct contact with the edge of the one of front or back surface of the first solar cell (10, 10A) in the thickness direction, and wherein the insulating member has a multi-layer structure including a resin base material and an adhesive layer, and the conductive light reflection film is formed on the resin base material on the adhesive layer, wherein a thickness of the adhesive layer is larger than the thickness of the first solar cell (10, 10A).