Ni-based coatings with nano-sized feedstock rare earth element (RE, La2O3) addition were produced by laser cladding. Bed of high energy ball milling mixed Ni60A and La2O3 powders were pre-placed unto the substrate 30CrMnSiNi2A before laser cladding. La segregates in interdendrite thus secondary dendrites growth and ripening are limited. The microstructure is refined. Top surface of cladded coatings displayed better refined microstructure which caused by high La concentration, this phenomena is verified in EPMA results. And the results of EPMA reflected the interconnection between Fe dilution and decrease of coating microhardness. The cracks and pores cannot be found in cladded coatings in which microstructure refinement and purify effect caused by RE is clearly reflected in SEM microstructure, hardness and especially, the wear resistance test results. The COF of Ni60A-La coatings is apparently lower than substrate steel and Ni60A, the wear volume loss rate of Ni60A-La coatings is less than 1/10 that of 30CrMnSiNi2A and 1/5 that of Ni60A, respectively. The microhardness of Ni60A-La is about 4 times higher than that of substrate metal.