A solar cell photovoltaic assembly, comprising more than two solar cell photovoltaic modules and bus bars for collecting currents of the interconnectors (30, 33); each solar cell photovoltaic module comprising a plurality of matrix-arranged cells, wherein a plurality of main grids and fine grids are distributed on a light receiving surface of the cells, the main grids collect currents on the fine grids connected thereto, the currents collected by the main grids are transmitted through interconnectors (30, 33) that connect to the main grids, the cells are rectangular, lengths of long sides of the cells are 156 - 160 mm, lengths of short sides of the cells are 31 - 54 mm, and the main grids are parallel to the short sides of the cells, and the widths of the main grids are 0.4 - 0.7 mm, preferably 0.5 - 0.6 mm; is characterized in that, the interconnectors (30, 33) comprise cell-to-cell interconnectors and string-to-string interconnectors, wherein the cell-to-cell interconnectors transport currents between the cells along a direction of the main grids, and the string-to-string interconnectors connect parallel cell-to-cell interconnectors in series; the cell-to-cell interconnectors are arranged parallel to main grids, and the string-to-string interconnectors perpendicularly intersect with the cell-to-cell interconnectors and connect the cell-to-cell interconnectors intersecting therewith in series; an end of each cell-to-cell interconnector is a light receiving surface end, and the other end thereof is a back light surface end, the light receiving surface end is connected to one main grid of one cell, the back light surface end is connected to a main grid of a back light surface of another cell, the cell-to-cell interconnector is used to connect two cells in series, and each string-to-string interconnector is welded on the back light surface end. each solar cell photovoltaic module comprising a plurality of matrix-arranged cells, wherein a plurality of main grids and fine grids are distributed on a light receiving surface of the cells, the main grids collect currents on the fine grids connected thereto, the currents collected by the main grids are transmitted through interconnectors (30, 33) that connect to the main grids, the cells are rectangular, lengths of long sides of the cells are 156 - 160 mm, lengths of short sides of the cells are 31 - 54 mm, and the main grids are parallel to the short sides of the cells, and the widths of the main grids are 0.4 - 0.7 mm, preferably 0.5 - 0.6 mm; is characterized in that, the interconnectors (30, 33) comprise cell-to-cell interconnectors and string-to-string interconnectors, wherein the cell-to-cell interconnectors transport currents between the cells along a direction of the main grids, and the string-to-string interconnectors connect parallel cell-to-cell interconnectors in series; the cell-to-cell interconnectors are arranged parallel to main grids, and the string-to-string interconnectors perpendicularly intersect with the cell-to-cell interconnectors and connect the cell-to-cell interconnectors intersecting therewith in series; an end of each cell-to-cell interconnector is a light receiving surface end, and the other end thereof is a back light surface end, the light receiving surface end is connected to one main grid of one cell, the back light surface end is connected to a main grid of a back light surface of another cell, the cell-to-cell interconnector is used to connect two cells in series, and each string-to-string interconnector is welded on the back light surface end.