PROBLEM TO BE SOLVED: To provide an odor substance adsorbent capable of improving deodorizing performance even in an environment where the water content is not sufficient. An odor substance adsorbent containing a hydrazine compound and a divalent metal chloride, wherein the content of the divalent metal chloride is more than 100 parts by mass based on 100 parts by mass of the hydrazine compound. [Selection diagram] None【課題】水分が十分ではない環境下においても、消臭性能を向上させることができる臭気物質吸着剤を提供する。【解決手段】ヒドラジン化合物と、2価金属塩化物とを含有し、前記ヒドラジン化合100質量部に対して、前記2価金属塩化物の含有量が100質量部より大きい、臭気物質吸着剤。【選択図】なし