NOVELTY - A counter electrode for a dye sensitizing solar cell, comprises counter substrate, corrosion-resistant metallic material film having a large number of recesses which are arranged in intervals so that the surface of the corrosion-resistant metallic material film has a waveform cross-section; and conductive catalytic material film formed so as to extend along the surface of the corrosion-resistant metallic material film.    USE - The counter electrode is used for a dye sensitizing solar cell (claimed).    ADVANTAGE - The counter electrode is inexpensive, and has a high photoelectric transfer efficiency even if a conductive catalytic material film is thin.    DETAILED DESCRIPTION - A counter electrode (3) for a dye sensitizing solar cell (1) where an electrolyte (4) is filled in a space between a photoelectrode (2) and the counter electrode, comprises:    (A) counter substrate (8);    (B) corrosion-resistant metallic material film (10) formed on the counter substrate, the corrosion-resistant metallic material film having a large number of recesses (12, 13) which are formed in its surface and which are arranged in intervals so that the surface of the corrosion-resistant metallic material film has a waveform cross-section; and    (C) conductive catalytic material film (11) formed on the surface of the corrosion-resistant metallic material film so as to extend along the surface of the corrosion-resistant metallic material film.    An INDEPENDENT CLAIM is also included for dye sensitizing solar cell comprising:    (A) counter electrode;    (B) photoelectrode arranged so as to face the counter electrode; and    (C) electrolyte filled in a space between the counter electrode and the photoelectrode.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic sectional view of a dye sensitizing solar cell.    Dye sensitizing solar cell (1)    Photoelectrode (2)    Counter electrode (3)    Electrolyte (4)    Counter substrate (8)    Corrosion-resistant metallic material film (10)    Conductive catalytic material film (11)    Recesses (12, 13)