A solar cell module comprising: a plurality of solar cells, each of which includes a first principal-surface side electrode and a second principal-surface side electrode; and a connection member for solar cell connection which is connected onto the first principal-surface side electrode of one of the plurality of solar cells and onto the second principal-surface side electrode of another one of the plurality of solar cells, wherein: the first principal-surface side electrode comprises a plurality of fine line-shaped electrodes and a non-linear-shaped connection electrode (40b, 240b) electrically connected to the plurality of fine line-shaped electrodes, wherein a width of the connection electrode (40b, 240b) of the first principal-surface side electrode is smaller than a width of the connection member, and the second principal-surface side electrode comprises a collector electrode and a linear-shaped connection electrode electrically connected to the collector electrode, wherein a width (Wub) of the connection electrode of the second principal-surface side electrode is not less than a region width (Wr) of the connection electrode (40b, 240b) of the first principal-surface side electrode; and the width (Wub) of the connection electrode of the second principal-surface side electrode is not less than the width (Ws) of the connection member. a plurality of solar cells, each of which includes a first principal-surface side electrode and a second principal-surface side electrode; and a connection member for solar cell connection which is connected onto the first principal-surface side electrode of one of the plurality of solar cells and onto the second principal-surface side electrode of another one of the plurality of solar cells, wherein: the first principal-surface side electrode comprises a plurality of fine line-shaped electrodes and a non-linear-shaped connection electrode (40b, 240b) electrically connected to the plurality of fine line-shaped electrodes, wherein a width of the connection electrode (40b, 240b) of the first principal-surface side electrode is smaller than a width of the connection member, and the second principal-surface side electrode comprises a collector electrode and a linear-shaped connection electrode electrically connected to the collector electrode, wherein a width (Wub) of the connection electrode of the second principal-surface side electrode is not less than a region width (Wr) of the connection electrode (40b, 240b) of the first principal-surface side electrode; and the width (Wub) of the connection electrode of the second principal-surface side electrode is not less than the width (Ws) of the connection member. the first principal-surface side electrode comprises a plurality of fine line-shaped electrodes and a non-linear-shaped connection electrode (40b, 240b) electrically connected to the plurality of fine line-shaped electrodes, wherein a width of the connection electrode (40b, 240b) of the first principal-surface side electrode is smaller than a width of the connection member, and the second principal-surface side electrode comprises a collector electrode and a linear-shaped connection electrode electrically connected to the collector electrode, wherein a width (Wub) of the connection electrode of the second principal-surface side electrode is not less than a region width (Wr) of the connection electrode (40b, 240b) of the first principal-surface side electrode; and the width (Wub) of the connection electrode of the second principal-surface side electrode is not less than the width (Ws) of the connection member.