To efficiently fabricate a high-precision filament electrode and to easily cope with design changes in a manufacturing technology of an electrode substrate for a PDP.

In this manufacturing method of an electrode substrate for a plasma display panel, a transparent conductive film formed on a surface of a transparent substrate 10 is irradiated with a laser beam L for eliminating the transparent conductive film to form many parallel and linear gaps 21, and the transparent conductive films remained between the parallel and linear gaps 21 are used as filament electrodes. The following processes (a), (b) are repeated. (a) Irradiating a laser beam on one position and linearly moving the transparent substrate 10 the transparent conductive film in a straight line is eliminated to form the linear gaps 21. (b) Without moving laser beam irradiation parts such as a laser generator 50 irradiating the laser beam L, the irradiation position of the laser beam L is moved by a prescribed distance in the direction perpendicular to the direction of a linear movement of the transparent substrate 10.