The carbon-based multiphase catalytic oxidation treatment technology can be used for waste gas treatment in industries such as plastic manufacturing, rubber processing, synthetic fiber production, fine chemicals, daily chemicals, chemical pharmaceuticals, biopharmaceuticals, pesticide manufacturing, fertilizer production, textile printing and dyeing, industrial sewage treatment, and food processing. The pollutants that can be treated include VOCs pollutants such as hydrocarbons, benzene series, alcohols, esters, and halogenated hydrocarbons, as well as odorous substances such as ammonia, hydrogen sulfide, trimethylamine, methyl mercaptan, and dimethyl sulfide. It is particularly used for the treatment of odorous organic waste gases with multi-component heteroatoms.