Provided is a gas laser electrode in which a stable laser output can be obtained by inhibiting the deterioration of the electrode (discharge characteristics). In an anode 3, a dielectric material 4 is applied on the surface of a discharging portion 3a in order to inhibit the deterioration of the electrode. Used as a dielectric material 4 may be, for example, fluorides such as calcium fluoride and strontium fluoride. Further, the dielectric material 4 is of a thickness (in a range of 0.005 mm1.5 mm, preferably 0.1 mm1 mm, for example) sufficient to prevent the erosion of halogen gas in the discharging portion 3a of the anode 3 and to secure a conductivity thereof, whereby it is enabled to form mono-fluoride evenly in extreme precision.