The resonant inverse photoemission study (RIPES) of CeRh3 has been carried out at Ce 4d --> 4f absorption edge. The 4f cross section increases drastically when the excitation energy is tuned to absorption edge. The line shape of 4f(2) state changes by the resonance effect because of its multiplet structure. The RIPES of CeRh3 which is in the valence fluctuation (VF) region shows the strong f(1) intensity. The energy position of f(1) peak of CeRd(3) is about 1 eV, which reflects the extremely high Kondo temperature of CeRh3. (C) 1999 Elsevier Science B.V. All rights reserved.