Stainless steel bipolar plates play a key role in solid oxide fuel cells as a supporting part of solid oxide fuel cells. In order to obtain the variation of the resistance of nickel–cobalt-coated stainless steel bipolar plates with temperature, a measurement test platform for the resistance of high-temperature bipolar plates was built, and the resistance of the bipolar plates with temperature was measured by the four-terminal resistance measurement method, and the resistance values of the solid oxide fuel cell bipolar plates at different temperatures were measured. The results show that the resistance of the stainless steel bipolar plate specimen of solid oxide fuel cell gradually decreases during the temperature increase. When the temperature of the solid oxide fuel cell stainless steel bipolar plate specimen is increased to 800 °C, the resistance value is 0.6 Ω and the resistivity is 0.24 Ω m.