The invention relates to a chemical absorbent, in particular to a chemical absorbent for deodorization. In order to overcome the technical problem, the invention proposes the technical scheme that the chemical absorbent consists of the following components in parts by weight: 10-20% of strong base, 5-7% of oxidant,0.2-0.5% of active agent, 0.05-2% of corrosion inhibitor, 0.05-2% of pour point depressant, 0.05-8% of desulfurizer, 0.05-4% of catalyst and 60-80% of water. The chemical absorbent has the advantages of overcoming the low removal rate of pure alkaline liquor to hydrogen sulfide in the prior art, improving the absorptivity of sulfur compounds in waste gas and removing organic sulfur, such as sulfur alcohol, sulfur ether, dimethyl disulfide, and the like. The waste residue of sodium sulfide which is generated after treatment is relatively stable and is easy to decompose, thereby avoiding secondary pollution. The chemical absorbent has longer use time than the traditional absorbent and high reaction speed in removing the sulfur compounds.