The tribocorrosion behavior of 316 L stainless steel in simulated body fluid was investigated by UMT2 multifunctional wear tester and electrochemical workstation (CHI614E).The morphology of tribocorrosion was analyzed by scanning electron microscopy.The results show that the corrosion potential of 316 L stainless steel after tribocorrosion tests is decreased,but the corrosion current is increased.Under different applied load conditions,the friction coefficient of tribocorrosion is higher than the pure friction coefficient.With the increase of applied loads,the friction coefficient of tribocorrosion is decreased and the current is increased.The wear surface damage of tribocorrosion is more serious than that of pure friction.The main wear mechanism is ploughing wear and local spalling caused by the shear deformation.