A solar cell module comprising: a plurality of solar cells receiving light from the outside and producing electricity; a conductive line connected to an adjacent pair of the plurality of solar cells and electrically connecting the adjacent pair of the plurality of solar cells to one another; a front transparent substrate disposed on front surfaces of the plurality of solar cells and on the conductive line, the front transparent substrate transmitting the light; a back sheet disposed on back surfaces of the plurality of solar cells and on the conductive line, wherein the back sheet has the same based color as a color of the conductive line when viewed from a front of the solar cell module, wherein the back sheet includes a colored thin film layer having the same based color as the color of the conductive line or a colored pigment layer including a colored pigment having the same based color as the color of the conductive line, the back sheet further includes a first sheet layer made of an insulating material and including a white pigment and a second sheet layer made of a transparent insulating material, the colored thin film layer or the colored pigment layer is disposed between the first sheet layer and the second sheet layer, the first sheet layer being at the outermost side of the back sheet, characterized in that the colored thin film layer or the colored pigment layer is not formed in the entire area of the back sheet, the colored thin film layer or the colored pigment layer is located at least at an area corresponding to a gap between the adjacent pair of the plurality of solar cells. a plurality of solar cells receiving light from the outside and producing electricity; a conductive line connected to an adjacent pair of the plurality of solar cells and electrically connecting the adjacent pair of the plurality of solar cells to one another; a front transparent substrate disposed on front surfaces of the plurality of solar cells and on the conductive line, the front transparent substrate transmitting the light; a back sheet disposed on back surfaces of the plurality of solar cells and on the conductive line, wherein the back sheet has the same based color as a color of the conductive line when viewed from a front of the solar cell module, wherein the back sheet includes a colored thin film layer having the same based color as the color of the conductive line or a colored pigment layer including a colored pigment having the same based color as the color of the conductive line, the back sheet further includes a first sheet layer made of an insulating material and including a white pigment and a second sheet layer made of a transparent insulating material, the colored thin film layer or the colored pigment layer is disposed between the first sheet layer and the second sheet layer, the first sheet layer being at the outermost side of the back sheet, characterized in that the colored thin film layer or the colored pigment layer is not formed in the entire area of the back sheet, the colored thin film layer or the colored pigment layer is located at least at an area corresponding to a gap between the adjacent pair of the plurality of solar cells.