A solar cell module comprising: a plurality of solar cells each including a photoelectric conversion body and an electrode provided on a surface of the photoelectric conversion body; a plurality of wiring materials, each of which electrically connects two adjacent solar cells of the plurality of solar cells with each other; and a resin adhesive that bonds the solar cells and the wiring materials together, wherein, for each of the solar cells: the electrode includes a finger electrode extending in a direction orthogonal to a direction in which the wiring material extends, characterized in that, for each of the solar cells: a thickness in a bonding area of the finger electrode bonded to the wiring material decreases from one side to another side of the bonding area in the direction in which the finger electrode extends, such that in the bonding area, an end portion on the one side in the direction in which the finger electrode extends is bonded to the wiring material with lower bonding strength than at least part of another portion on the other side of the bonding area. a plurality of solar cells each including a photoelectric conversion body and an electrode provided on a surface of the photoelectric conversion body; a plurality of wiring materials, each of which electrically connects two adjacent solar cells of the plurality of solar cells with each other; and a resin adhesive that bonds the solar cells and the wiring materials together, wherein, for each of the solar cells: the electrode includes a finger electrode extending in a direction orthogonal to a direction in which the wiring material extends, characterized in that, for each of the solar cells: a thickness in a bonding area of the finger electrode bonded to the wiring material decreases from one side to another side of the bonding area in the direction in which the finger electrode extends, such that in the bonding area, an end portion on the one side in the direction in which the finger electrode extends is bonded to the wiring material with lower bonding strength than at least part of another portion on the other side of the bonding area. the electrode includes a finger electrode extending in a direction orthogonal to a direction in which the wiring material extends, characterized in that, for each of the solar cells: a thickness in a bonding area of the finger electrode bonded to the wiring material decreases from one side to another side of the bonding area in the direction in which the finger electrode extends, such that in the bonding area, an end portion on the one side in the direction in which the finger electrode extends is bonded to the wiring material with lower bonding strength than at least part of another portion on the other side of the bonding area. a thickness in a bonding area of the finger electrode bonded to the wiring material decreases from one side to another side of the bonding area in the direction in which the finger electrode extends, such that in the bonding area, an end portion on the one side in the direction in which the finger electrode extends is bonded to the wiring material with lower bonding strength than at least part of another portion on the other side of the bonding area.