Abstract: SiCp particles were coated with a layer of Ni powder using powder embedding assisted coating technology, and ceramic particle reinforced iron-based composites were prepared using powder metallurgy technology. The effect of SiC content on the mechanical properties of SiC/Fe and SiC（Ni）/Fe composites was compared. The results show that adding silicon carbide particles coated with nickel can effectively improve the interface bonding between the reinforcement and the matrix, significantly enhancing the mechanical properties of iron-based composites. When the SiC content is 0.6%, and the average hardness of SiC/Fe composite material reaches 89.5 HRB. The average hardness of SiC（Ni）/Fe composite material reaches 92 HRB, which is 8.9% and 11.9% higher than the average hardness of the matrix of 82.2 HRB, respectively. When the SiC content is 0.1%, the impact toughness of SiC/Fe composite material reaches the maximum value of 22.6 J/cm², and the impact toughness of sintered steel coated with nickel is higher than that of sintered steel directly added with SiC particles. When the SiC content is 0.1%, the tensile strength of SiC（Ni）/Fe composite material reaches the maximum value of 680 MPa, which is higher than the tensile strength of the matrix. The tensile strength of SiC/Fe composite material is close to that of the matrix. The wear resistance of diffusion alloyed steel doped with nickel coated SiC particles is improved compared to diffusion alloyed steel doped with SiC particles.