The invention relates to polypyrrole-based antioxidant composite carbon crystal powder, which is prepared from the components in parts by weight: 44 parts of graphite, 18 parts of antioxidant polypyrrole resin powder, 20 parts of black phosphorus, 8 parts of boron nitride, 7 parts of 4-fluorophenylboronic acid, 1.0 part of a non-ionic polymer waterborne dispersant and 0.10 part of fatty glyceride.The polypyrrole-based antioxidant composite carbon crystal powder has the advantages that (1) the black phosphorus with relatively high conductivity is applied to a carbon crystal powder material forthe first time; and (2) the antioxidant polypyrrole resin powder is synthesized, and meanwhile, an organic boron antioxidant is added, so that the oxidation resistance and the persistent stability ofthe carbon crystal powder are improved.