The invention relates to a toon tree wood antiquing treatment agent. The treatment agent consists of medicine liquid A, medicine liquid B and medicine liquid C, wherein the medicine liquid A is prepared by the following raw materials in parts by weight: 9.5 parts of folium isatidis, 7 parts of wild jujube leaves, 1.8 parts of divaricate saposhnikovia root, 3.2 parts of herba cepbalanoplosis segeti, 0.5 part of rhamnus utilis, 8 parts of quick lime, and 200 parts of water; the medicine liquid B is prepared by the following raw materials: 4 parts of rhizoma sparganii, 3.6 parts of radix stemonae, 4 parts of sandalwood, 2.5 parts of rhizoma alismatis, 7.2 parts of sodium hydrogen sulfate, and 120 parts of water; and the medicine liquid C is prepared by the following raw materials: 5 parts of sodium bicarbonate, and 150 parts of water. The toon tree wood antiquing treatment agent is prepared by mainly adopting traditional Chinese medicine components; and through reasonable matching and synergic effect between the traditional Chinese medicine components and inorganic components, the treatment effect is good, the antiquing effect is uniform and natural, textures are continuously distributed, the internal wood structure is free of corrosion, and the wood effects of corrosion resistance and insect resistance can be enhanced.