A solar cell module comprising a plurality of solar cells and a plurality of wiring members connecting a first solar cell of the plurality of solar cells to a second solar cell adjacent to the first solar cell: the plurality of solar cells, each including: a semiconductor substrate, first electrodes on a front surface of the semiconductor substrate in parallel with one another and extended in a first direction, a plurality of first pads (140, 141, 140a, 140e) each having a width greater than a width of the first electrode, the plurality of first pads (140, 141, 140a, 140e) including a plurality of auxiliary pads (141, 140a) and a plurality of extension pads (140, 140e), first connection electrodes extended in a second direction crossing the first direction and connected to the first electrodes on the front surface of the semiconductor substrate, and second electrodes on a back surface of the semiconductor substrate, characterized in that: the plurality of first pads (140, 141, 140a, 140e) are selectively formed at crossings of the first electrodes and the first connection electrodes, the plurality of wiring members connects the first electrodes of the first solar cell to the second electrodes of the second solar cell, the wiring members are extended in the second direction on the front surface of the first solar cell and overlapped with the first connection electrodes, a length in the second direction of the extension pad (140, 140e) is greater than a length in the second direction of the auxiliary pad (141, 140a), a width in the first direction of the extension pad (140, 140e) is greater than a line width (Da) of the wiring members, the extension pad (140, 140e) is positioned at the first electrode positioned at the outermost side among the first electrodes crossing the wiring member along the second direction of the wiring member on the front surface of the semiconductor substrate, and each wiring member of the plurality of wiring members is connected to the first connection electrode as well as to the plurality of auxiliary pads (141, 140a) and the plurality of extension pads (140, 140e). a semiconductor substrate, first electrodes on a front surface of the semiconductor substrate in parallel with one another and extended in a first direction, a plurality of first pads (140, 141, 140a, 140e) each having a width greater than a width of the first electrode, the plurality of first pads (140, 141, 140a, 140e) including a plurality of auxiliary pads (141, 140a) and a plurality of extension pads (140, 140e), first connection electrodes extended in a second direction crossing the first direction and connected to the first electrodes on the front surface of the semiconductor substrate, and second electrodes on a back surface of the semiconductor substrate, characterized in that: the plurality of first pads (140, 141, 140a, 140e) are selectively formed at crossings of the first electrodes and the first connection electrodes, the plurality of wiring members connects the first electrodes of the first solar cell to the second electrodes of the second solar cell, the wiring members are extended in the second direction on the front surface of the first solar cell and overlapped with the first connection electrodes, a length in the second direction of the extension pad (140, 140e) is greater than a length in the second direction of the auxiliary pad (141, 140a), a width in the first direction of the extension pad (140, 140e) is greater than a line width (Da) of the wiring members, the extension pad (140, 140e) is positioned at the first electrode positioned at the outermost side among the first electrodes crossing the wiring member along the second direction of the wiring member on the front surface of the semiconductor substrate, and each wiring member of the plurality of wiring members is connected to the first connection electrode as well as to the plurality of auxiliary pads (141, 140a) and the plurality of extension pads (140, 140e). the plurality of first pads (140, 141, 140a, 140e) are selectively formed at crossings of the first electrodes and the first connection electrodes, the plurality of wiring members connects the first electrodes of the first solar cell to the second electrodes of the second solar cell, the wiring members are extended in the second direction on the front surface of the first solar cell and overlapped with the first connection electrodes, a length in the second direction of the extension pad (140, 140e) is greater than a length in the second direction of the auxiliary pad (141, 140a), a width in the first direction of the extension pad (140, 140e) is greater than a line width (Da) of the wiring members, the extension pad (140, 140e) is positioned at the first electrode positioned at the outermost side among the first electrodes crossing the wiring member along the second direction of the wiring member on the front surface of the semiconductor substrate, and each wiring member of the plurality of wiring members is connected to the first connection electrode as well as to the plurality of auxiliary pads (141, 140a) and the plurality of extension pads (140, 140e).