NOVELTY - A full-carbon counter electrode comprises a carbon-based substrate, and a carbon catalytic active layer coated on the carbon-based substrate. The substrate comprises carbon material in film or plate shape. The carbon material has resistance of 0.01-100 ~o, volume density of 0.1-2.2 g/cm3 and thickness of 0.05-5 mm. The carbon catalytic active layer comprises a carbon catalytic active material prepared into carbon paste by using carbon material. The carbon catalytic active material powder has grain size of 5 nm to 20 mu m, and specific surface area of 10-2500 m2/g.    USE - Full-carbon counter electrode is used for dye-sensitized solar battery.    ADVANTAGE - The full-carbon counter electrode is produced by simple and efficient method. The full-carbon counter electrode is capable of reducing serially connected resistance interface resistance in battery, so as to increase short circuit current, filling factor and photoelectric transformation efficiency of the battery.    DETAILED DESCRIPTION - A full-carbon counter electrode comprises a carbon-based substrate, and a carbon catalytic active layer coated on the carbon-based substrate. The substrate is carbon material in film, sheet or plate shape. The carbon material has resistance of 0.01-100 ~o, volume density of 0.1-2.2 g/cm3 and thickness of 0.05-5 mm. The carbon catalytic active layer comprises a carbon catalytic active material prepared into carbon paste by using carbon material. The carbon catalytic active material powder has grain size of 5 nm to 20 mu m, and specific surface area of 10-2500 m2/g. Ceramic powder is added to the carbon paste. The carbon material of the substrate is flexible graphite paper, carbon fiber paper, carbon plate or carbon piece. The carbon catalytic active material is active carbon, carbon black, scaly graphite, spherical graphite, grapheme, single-walled carbon nano-tube, multi-walled carbon nano-tube, carbon fiber and/or hard carbon material. The ceramic powder contains titania, zinc oxide, silica, alumina, zirconia, cerium oxide, magnesium oxide, lanthanum oxide, yttrium oxide, tantalum oxide and/or niobium oxide. An INDEPENDENT CLAIM is included for production of full-carbon counter electrode.