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When the aircraft was flying in the air, the electrostatic discharge could be occurred because of various reasons, which may lead the fuel tank fire explosion. And the radiation produced by the electrostatic discharge would cause interference to the aircraft communications and navigation systems. So the aircraft surface material would require a certain antistatic performance. The surface resistivity of materials was an important parameter to measure the antistatic performance. At the same time, in the process of the high speed movement the aircraft in the air could produce high heat due to friction with the atmospheric, so it was especially important to measure the surface resistivity of the material in high temperature condition. The test methods of material surface resistivity in normal temperature were three electrode method and two electrode method. In this paper, through the analysis of three electrode method and two electrode method, test method of material surface resistance in high temperature conditions was put forward on the basis of the two electrode method. The test system of material surface resistivity in the high temperature conditions was constructed. The feasibility of this method was proved by testing the surface resistivity of a material with the elevation of temperature.