A method for producing a dye-sensitized solar cell module (100; 200; 400; 600) which includes plural dye-sensitized solar cells that are electrically connected in series, the method comprising: a connection step of electrically connecting the plural dye-sensitized solar cells in series, wherein the dye-sensitized solar cells are produced by the method comprising a preparation step of preparing a first electrode comprising a transparent substrate and a transparent conductive film that is provided on the transparent substrate, and a second electrode comprising a metal substrate that is formed of a metal capable of forming a passivation film; an oxide semiconductor layer formation step of forming an oxide semiconductor layer on the first electrode or the second electrode; a dye-supporting step of supporting a photosensitized dye on the oxide semiconductor layer; an electrolyte disposition step of disposing an electrolyte on the oxide semiconductor layer; a sealing step of arranging the first electrode and the second electrode to face each other, and sealing the electrolyte by means of a sealing section; and a connection member fixation step of fixing a connection member (60; 260; 460) having a linear shape and being formed of a metal having lower resistance than the metal substrate, onto the surface of the metal substrate of the second electrode, with the surface being on the opposite side of the first electrode, a portion of the connection member (60; 260; 460) being fixed to an area that faces the electrolyte in the second electrode; wherein in the connection member fixation step, the connection member is bonded to the metal substrate by resistance welding, and thereby the connection member (60; 260; 460) is fixed onto the metal substrate, and in the connection step, the connection member (60; 260; 460) that is provided on the second electrode of one dye-sensitized solar cell between two adjoining dye-sensitized solar cells has an edge which protrudes over the sealing section towards the adjoining dye-sensitized solar cell and which is directly bonded to the terminal section (90; 14c) that is provided on the first electrode of the other dye-sensitized solar cell. a connection step of electrically connecting the plural dye-sensitized solar cells in series, wherein the dye-sensitized solar cells are produced by the method comprising a preparation step of preparing a first electrode comprising a transparent substrate and a transparent conductive film that is provided on the transparent substrate, and a second electrode comprising a metal substrate that is formed of a metal capable of forming a passivation film; an oxide semiconductor layer formation step of forming an oxide semiconductor layer on the first electrode or the second electrode; a dye-supporting step of supporting a photosensitized dye on the oxide semiconductor layer; an electrolyte disposition step of disposing an electrolyte on the oxide semiconductor layer; a sealing step of arranging the first electrode and the second electrode to face each other, and sealing the electrolyte by means of a sealing section; and a connection member fixation step of fixing a connection member (60; 260; 460) having a linear shape and being formed of a metal having lower resistance than the metal substrate, onto the surface of the metal substrate of the second electrode, with the surface being on the opposite side of the first electrode, a portion of the connection member (60; 260; 460) being fixed to an area that faces the electrolyte in the second electrode; wherein in the connection member fixation step, the connection member is bonded to the metal substrate by resistance welding, and thereby the connection member (60; 260; 460) is fixed onto the metal substrate, and a preparation step of preparing a first electrode comprising a transparent substrate and a transparent conductive film that is provided on the transparent substrate, and a second electrode comprising a metal substrate that is formed of a metal capable of forming a passivation film; an oxide semiconductor layer formation step of forming an oxide semiconductor layer on the first electrode or the second electrode; a dye-supporting step of supporting a photosensitized dye on the oxide semiconductor layer; an electrolyte disposition step of disposing an electrolyte on the oxide semiconductor layer; a sealing step of arranging the first electrode and the second electrode to face each other, and sealing the electrolyte by means of a sealing section; and a connection member fixation step of fixing a connection member (60; 260; 460) having a linear shape and being formed of a metal having lower resistance than the metal substrate, onto the surface of the metal substrate of the second electrode, with the surface being on the opposite side of the first electrode, a portion of the connection member (60; 260; 460) being fixed to an area that faces the electrolyte in the second electrode; wherein in the connection member fixation step, the connection member is bonded to the metal substrate by resistance welding, and thereby the connection member (60; 260; 460) is fixed onto the metal substrate, and in the connection step, the connection member (60; 260; 460) that is provided on the second electrode of one dye-sensitized solar cell between two adjoining dye-sensitized solar cells has an edge which protrudes over the sealing section towards the adjoining dye-sensitized solar cell and which is directly bonded to the terminal section (90; 14c) that is provided on the first electrode of the other dye-sensitized solar cell.