The present invention relates to a method of producing an odor deodorant for deodorization and an odor deodorant for deodorization produced thereby. The method for preparing an odor-depleting inorganic deodorant according to the present invention comprises: preparing powdered activated carbon capable of performing an adsorption reaction with malodor; An acidic solution mixing step of mixing powdered activated carbon prepared in the powder activated carbon preparation step with an acidic solution to peptize the powdered activated carbon; A step of preparing powdery activated carbon of fine particles by peptizing the powdery activated carbon mixed in the powdery activated carbon and the acidic solution mixing step into an acidic solution; A step of forming particulate powder activated carbon and a precipitate of manganese dioxide to produce a reactant mixture of particulate powder activated carbon and manganese dioxide precipitate by mixing the particulate powder activated carbon produced in the step of preparing the particulate powder activated carbon and the aqueous sodium permanganate solution; A transition metal is added to a mixture of the particulate powder activated carbon and the manganese dioxide precipitate prepared in the step of forming the particulate powder activated carbon and the manganese dioxide precipitate so as to impregnate the transition metal and the sodium oxide into the manganese (Mn) oxide, step; And a step of preparing an inorganic deodorant having an oxidizing power by using a mixture obtained by impregnating manganese (Mn) oxide with a transition metal and sodium (Na) oxide prepared in the step of impregnating the transition metal and oxide. According to the above-described constitution, the deodorant for deodorization according to the present invention effectively removes odor generated from hydrogen sulfide, mercaptans, amines, ammonia and other irritating gaseous substances, and at the same time, .본 발명은 악취제거용 무기탈취제의 제조방법 및 이에 의해 제조된 악취제