Abstract: By use of the methods of potentiodynamic polarization and electrochemical impedance spectroscopy, the effect of temperature changes on the corrosion behavior of 316L stainless steel electrodes is studied in simulated geothermal aqueous solutions. The experimental results show that the 316L stainless steel electrode scales in the test range of 55~75 ℃. The fouling time on the surface of the stainless steel electrode changes significantly with temperature, and the film forming time first increases and then decreases with the increase of temperature. The electrochemical results show that the stainless steel electrode has the smallest corrosion current density, the largest corrosion potential and polarization resistance at 65 ℃.