Abstract: Co，WC and TiC powder were prepared on the surface of 65Mn steel which was commonly used in agricultural machinery parts by means of argon arc cladding technique.Micro-hardness and wear resistance of cladding were tested by micro-hardness instrument and abrasive wear testing machine.Microstructures of cladding were investigated by means of optical microscopy，scanning electron microscopy. Results indicated that the hard phase WC，TiC and others scatter in soft phase Co，it made better resistance to abrasive cutting hard phase，improve the wear resistance and hardness finally.