To provide an electrode board for a dye-sensitized solar cell, capable of easily improving photoelectric conversion efficiency of the dye-sensitized solar cell, through the restraint of short circuiting at an interface between a porous semiconductor electrode and electrolyte, as well as enhancement of light utilization efficiency at the porous semiconductor electrode.

In manufacturing an electrode board 20 for a dye-sensitized solar cell provided with a transparent base material, a transparent electrode formed on one face of the transparent base material, a porous semiconductor electrode formed on the transparent electrode with the use of a plenty of semiconductor fine particles, and dyes supported on the surface of the semiconductor fine particles forming the porous semiconductor electrode, a relatively dense semiconductor dense layer is provided between the transparent electrode and the porous semiconductor electrode, and is made to contain accessory ingredients involved in its refraction index control.

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