In order to investigate the performance of MnCo₂O₄ spinel coating as a metal linker surface coating for solid oxide fuel cells, pure precursor powder was prepared by sol-gel method, and then dense MnCo₂O₄ spinel coating was prepared by electrophoretic deposition method. The four-probe method was used to measure the surface specific resistance of MnCo₂O₄ spinel coatings before and after oxidation at 800°C for 200 h. The bond strength of the coatings was tested at different interface roughnesses using the pull-out method and verified using finite element simulations. The results show that the MnCo₂O₄ spinel coating has a homogeneous structure and good densities. Compared to the AISI430 stainless steel substrate, oxidation at 800°C in air for 200h increases the oxidation resistance by nearly three times. And the specific resistance at the medium temperature surface is less than the limit value specified for SOFC metal connectors. In addition, the surface roughness of the substrate can effectively increase the mechanical bite between the coating and the substrate, but at the same time it can also lead to stress concentration and defects, which reduce the bond strength.