A solar cell module comprising: a plurality of solar cell units (C, D), each including a supporting substrate wherein a surface of the supporting substrate is coated by metal, and an even number of solar cells which are disposed on the metal surface on the supporting substrate and have bus bar electrodes formed on opposite surfaces of the solar cells to the surfaces of the solar cells disposed on the metal surface; and a conductor electrically connecting surfaces of adjacent solar cells between respective adjacent solar cell units (C, D) that have opposite surface polarities, wherein adjacent solar cells in each of the plurality of solar cell units (C, D) are alternately arranged so that the surface polarities of the adjacent solar cells are opposite to each other, each of the plurality of solar cell units (C, D) has one or more sets of two solar cells electrically connected to each other on the metal surface on the supporting substrate, each of the plurality of solar cell units (C, D) has one first solar cell unit and two second solar cell units, each of the first solar cell unit and the second solar cell unit contains a set of the adjacent solar cells electrically connected by the metal surface and a set of the adjacent solar cells not electrically connected by the metal surface, in the first solar cell unit, two sets of the adjacent solar cells are electrically connected by the metal surface, wherein each set of the adjacent solar cells form a first cell column wherein the solar cells are located in series in one direction and the bus bar electrode on the solar cells is located along a direction of the column of the solar cells, in the second solar cell unit, two sets of the adjacent solar cells are electrically connected by the metal surface, wherein each set of the adjacent solar cells is located in series in one direction and directions of the bus bar electrodes make a right angle, and one set of the adjacent solar cells not electrically connected by the metal surface form a second cell column wherein the solar cells are located in series in one direction and each of the bus bar electrodes on the solar cells are located along a direction of the column of the solar cells, in the first cell column, a solar cell located at each end of the column is electrically connected to an adjacent solar cell in an adjacent solar cell unit by the conductor, and in one of the second cell columns, adjacent solar cells constituting the second cell column are electrically connected by the conductor. a plurality of solar cell units (C, D), each including a supporting substrate wherein a surface of the supporting substrate is coated by metal, and an even number of solar cells which are disposed on the metal surface on the supporting substrate and have bus bar electrodes formed on opposite surfaces of the solar cells to the surfaces of the solar cells disposed on the metal surface; and a conductor electrically connecting surfaces of adjacent solar cells between respective adjacent solar cell units (C, D) that have opposite surface polarities, wherein adjacent solar cells in each of the plurality of solar cell units (C, D) are alternately arranged so that the surface polarities of the adjacent solar cells are opposite to each other, each of the plurality of solar cell units (C, D) has one or more sets of two solar cells electrically connected to each other on the metal surface on the supporting substrate, each of the plurality of solar cell units (C, D) has one first solar cell unit and two second solar cell units, each of the first solar cell unit and the second solar cell unit contains a set of the adjacent solar cells electrically connected by the metal surface and a set of the adjacent solar cells not electrically connected by the metal surface, in the first solar cell unit, two sets of the adjacent solar cells are electrically connected by the metal surface, wherein each set of the adjacent solar cells form a first cell column wherein the solar cells are located in series in one direction and the bus bar electrode on the solar cells is located along a direction of the column of the solar cells, in the second solar cell unit, two sets of the adjacent solar cells are electrically connected by the metal surface, wherein each set of the adjacent solar cells is located in series in one direction and directions of the bus bar electrodes make a right angle, and one set of the adjacent solar cells not electrically connected by the metal surface form a second cell column wherein the solar cells are located in series in one direction and each of the bus bar electrodes on the solar cells are located along a direction of the column of the solar cells, in the first cell column, a solar cell located at each end of the column is electrically connected to an adjacent solar cell in an adjacent solar cell unit by the conductor, and in one of the second cell columns, adjacent solar cells constituting the second cell column are electrically connected by the conductor.