We report on the synthesis and the characterisation of metal/semiconductor hybrids consisting of self-aseembledCdS nanoparticles on Cd nanowires,which are grown by thermal evaporation of the mixture of CdS and Cr.Thegrowth of the hyrbrids is attributed to the decomposition of CdS at high temperature and the strain relieving thatarises mainly from the lattice mismatch between Cd and CdS.Temperature dependence of zero-field resistance of singlenanohybrid indicates that the as-produced Cd/CdS nanohybrid undergoes a metal-semiconductor transition as a naturalconsequence of hybrid from metallic Cd and semiconducting CdS.The metal/semiconductor hybrid property providesa promising basis for the development of novel nanoelectronic devices.