HoRh3B is synthesized by the arc melting method. Its chemical and magnetic properties are studied by XPS and magnetization measurements. Although the spectral features Ho4d, Ho4f and Ho5p between the compound and the Ho metal are very similar, each binding energy in the compound is smaller by about 0.3 eV than that in the metal. The density of states at the Fermi level of the compound are contributed mainly from Rh levels. The XP spectra for HoRh3B and HoRh3B0.706 coincide with each other except for the intensity of B is level. Both HoRh3B and HoRh3B0.706 exhibit normal paramagnetic behavior. The effective magnetic moments of 10.44 μB for HoRh3B and 10.40 μB for HoRh3B0.706 are in agreement with the Hund value of 10.61 μB for Ho3+.