A solar cell of the present invention includes a collecting electrode (7) extending in one direction on a first principal surface of a photoelectric conversion section (50). The collecting electrode (7) includes a first electroconductive layer (71) and a second electroconductive layer (72) in this order from the photoelectric conversion section (50) side, and further includes an insulating layer (9) provided with openings between the first electroconductive layer (71) and the second electroconductive layer (72). The first electroconductive layer (71) is covered with the insulating layer (9), and the second electroconductive layer (72) is partially in conduction with the first electroconductive layer (71) through the openings of the insulating layer (9). The first electroconductive layer (71) has non-central portions (Lo) within a range of d 2 - d I from both ends of the first electroconductive layer, respectively, and a central portion (Lc) between the two non-central portions, in a direction orthogonal to an extending direction of the first electroconductive layer (71). A density S C of openings of the insulating layer on the first electroconductive layer at the central portion (Lc) is higher than a density So of openings of the insulating layer on the first electroconductive layer at the non-central portion (Lo).