A solar cell module comprising: a back sheet; a plurality of strings (ST1, ST2, ST3, ST4) each including a plurality of solar cells, which are disposed on the back sheet, each of the plurality of strings (ST1, ST2, ST3, ST4) extending in a first direction (x); a front transparent substrate disposed on front surfaces of the plurality of strings (ST1, ST2, ST3, ST4); a first encapsulant disposed between the front transparent substrate and the front surfaces of the plurality of strings (ST1, ST2, ST3, ST4); a second encapsulant disposed between the back sheet and back surfaces of the plurality of strings (ST1, ST2, ST3, ST4); a plurality of first reflectors each disposed in a first space between the plurality of solar cells included in each string (ST1, ST2, ST3, ST4), which are separated from one another in the first direction (x) corresponding to a longitudinal direction of the each string (ST1, ST2, ST3, ST4), the plurality of first reflectors reflecting incident light; and a plurality of second reflectors each disposed in a second space between the plurality of strings (ST1, ST2, ST3, ST4), which are separated from one another in a second direction (y) crossing the first direction (x), the plurality of second reflectors reflecting incident light, wherein the plurality of first reflectors and the plurality of second reflectors do not overlap semiconductor substrates of the solar cells and are spatially separated from the semiconductor substrates of the solar cells, characterized in that the plurality of solar cells of a string (ST1, ST2, ST3, ST4) is connected in series to one another by a plurality of interconnectors, and each of the plurality of first reflectors is disposed on a front surface of the interconnector and is separated from the front surface of the interconnector. a back sheet; a plurality of strings (ST1, ST2, ST3, ST4) each including a plurality of solar cells, which are disposed on the back sheet, each of the plurality of strings (ST1, ST2, ST3, ST4) extending in a first direction (x); a front transparent substrate disposed on front surfaces of the plurality of strings (ST1, ST2, ST3, ST4); a first encapsulant disposed between the front transparent substrate and the front surfaces of the plurality of strings (ST1, ST2, ST3, ST4); a second encapsulant disposed between the back sheet and back surfaces of the plurality of strings (ST1, ST2, ST3, ST4); a plurality of first reflectors each disposed in a first space between the plurality of solar cells included in each string (ST1, ST2, ST3, ST4), which are separated from one another in the first direction (x) corresponding to a longitudinal direction of the each string (ST1, ST2, ST3, ST4), the plurality of first reflectors reflecting incident light; and a plurality of second reflectors each disposed in a second space between the plurality of strings (ST1, ST2, ST3, ST4), which are separated from one another in a second direction (y) crossing the first direction (x), the plurality of second reflectors reflecting incident light, wherein the plurality of first reflectors and the plurality of second reflectors do not overlap semiconductor substrates of the solar cells and are spatially separated from the semiconductor substrates of the solar cells, characterized in that the plurality of solar cells of a string (ST1, ST2, ST3, ST4) is connected in series to one another by a plurality of interconnectors, and each of the plurality of first reflectors is disposed on a front surface of the interconnector and is separated from the front surface of the interconnector.