Mechanical alloying (MA) has been used to study the amorphisation reaction of ZrRh system. A two of MA alloys of Zr75Rh25 and Zr50Rh50 were prepared. X-ray diffraction was used to investigate the structure of these specimens. During the investigated MA time, Zr75Rh25 alloy is partially amorphised while Zr50Rh50 alloy is completely amorphised by EIIA technique. The amorphous phase of Zr50Rh50 system occurred in a very short MA time. This amorphous phase was confirmed by the reduced radial distribution function G(r) obtained by Fourier transform of the structure factor S(Q). The thermal stability of the amorphous Zr50Rh50 phase was investigated by DSC measurements to determine the crystallisation temperature of such a system.