Abstract: With TiC, Ni, TiN, C and Cr powders as raw materials, TiC-l0TiN-xCr-30Ni-4C (x=0, 2, 4, 6, 8, molar fraction/%) cermets were prepared by powder metallurgy, and the effects of Cr addition amount on the structure, and magnetic and mechanical properties of the cermets were investigated. The results show that with the increase of Cr addition amount, the density of cermets increased, the Ti(C, N) ceramic phase showed black core-ash ring structure, the composition of black core and ash ring became more uniform, the particles of Ti(C, N) ceramic phase were refined, and the lattice constant of Ni-based binder phase firstly increased and then slightly decreased. When the molar fraction of Cr was not greater than 2%, the cermets were ferromagnetic, and as the addition amount of Cr continued to increase, the cermets had the non-magnetic characteristics at room temperature. With the increase of Cr addition amount, the maximum magnetic susceptibility at room temperature of cermets first decreased and then increased, and the saturation magnetization and remanent magnetization first decreased and then remained 0 under the molar fraction of Cr greater than 2%. With the increase of Cr addition amount, the flexural strength of the cermets decreased, and the hardness increased. When the molar fraction of Cr was 4%, the cermet had the best overall properties with non-magnetic properties at room temperature, the lowest room temperature maximum magnetic susceptibility of 1.85×10⁻⁷ m³ · kg⁻¹ and the high bending strength of 1 094 MPa and hardness of 88.1 HRA.