A solar cell photovoltaic assembly, comprising more than two solar cell photovoltaic modules and bus bars for collecting currents of the interconnectors ; 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 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 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 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 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 . <EOS>