The propagation of the ion-Bernstein wave and resulting heating at 5 Omega D resonance are investigated in a two-component ion plasma (D-H) by means of particle simulation. The propagation of the ion-Bernstein wave observed in the simulation can be characterized by the linear theory. The wave energy is deposited locally around the 5 Omega D resonance region located in the center of the system due to the direct energy absorption into D and H through the 5 Omega D resonance and 5/2 Omega H subharmonic resonance. The bulk of the velocity distribution of H is heated. For the deuterium species, generation of high energy tail ions is observed as well as the heating of the bulk of the velocity distribution.