Atmospheric plasma spraying (APS) and high velocity oxyen-fuel spraying (HVOF) technology were used to prepare WC-Ni coatings with different spraying parameter. Phase composition and microstructures of coatings were respectively characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). The Vickers microhardness, elastic modulus and fracture toughness were also tested using Vicker’s microhardness tester. Wear properties of coatings were tested by pin-on-disk tester. With APS technology, the higher densification and WC decarbonization of coatings were performed by higher power. With HVOF technology, the higher densification and the lower WC decarbonization of coatings were performed at lower spraying distance. Compared to APS technology, the higher densification, mechanical and wear resistance properties, and the lower decarbonization of coatings were performed by HVOF technology. With similar densification of coatings, the preferable wear-resistance was produced with lower decarbonization.