A new kind TiBN powder material was synthesized by boronizing sintering method. TiBN was both ceramic and metallic, with a resistivity of 2.6 × 10-3 Ω·cm. Cu/TiBN and Cu/TiN electrical contact materials were prepared by powder metallurgy using TiBN and TiN as reinforced phases. These microstructure and physical properties of electrical contact materials with different contents of TiBN and TiN were systematically investigated. The results demonstrated that, when compared to TiN, the TiBN reinforced phase can significantly improve the electrical conductivity, oxidation resistance, hardness, and arc erosion resistance of Cu-based electrical contact materials. When the content of TiBN was 5wt.%, the arc erosion resistance of Cu/TiBN was the best, and the weight loss was only 1.5mg. During arc erosion, products such as TixOy, B2O3 and N2 were formed on the surface of Cu/TiBN. These products can significantly improve the arc erosion resistance of Cu/TiBN electrical contact materials. The newly developed Cu/TiBN electrical contact materials had excellent mechanical properties and resistance to arc erosion, and had a broad application prospect in the electrical contact industry.