PROBLEM TO BE SOLVED: To provide a deodorant polyurethane foam excellent in deodorant effect and durability thereof. SOLUTION: This deodorant polyurethane foam comprises a deodorant component containing a polymer compound A having amino group and a polymer compound B having acid radical and/or a group in which the acid radical is a salt. A preparation method of this deodorant polyurethane foam comprises bringing particles of the deodorant component containing the polymer compound A and the polymer compound B into contact with polyurethane foam, or bringing the dispersion of particles of the deodorant component into contact with polyurethane foam. Another preparation method of this deodorant polyurethane foam comprises mixing the polymer compound A with a polymeric monomer C, bringing the resulting mixture into contact with polyurethane foam, and then polymerizing the polymeric monomer C.
