Ni-based WC stripes on the W6Mo5Cr4V2 high speed steel (HSS) specimen surfaces are fabricated by the laser cladding technique. The friction and wear tests of HSS specimens and specimens with Ni-based WC cladding stripes are carried out, respectively. The friction coefficients of specimens are measured and the friction reducing mechanism of HSS specimens with Ni-based WC stripes is investigated. The results show that the friction coefficients of specimens with Ni-based WC cladding stripes are lower than those of HSS specimens, and they decrease with the decrease of cladding stripe space. Graphite precipitation and Ni meltal self-contained within the specimens with Ni-based WC cladding stripes have a better friction reducing effect, and the friction-reducing mechanism of Ni-based WC cladding stripes is the combination of hard phase with soft substrates.