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Universal Exhaust Gas Oxygen (UEGO) sensor has a wide range of air-fuel ratio measurement, is widely used in air-fuel ratio control system of the lean burn engine. The UEGO sensor should work with the controller. The air-fuel ratio can be measured by controlling temperature and pump current.However, the temperature of the UEGO sensor is nonlinear and the pump current parameter is perturbed, which bring difficulties to the control. In order to shorten the start-up time, segmented temperature control strategy combining slope heating with fuzzy PI is adopted to overcome the temperature non-linearity and the heating limitation during the start-up.OE model based system identification method is used for establishing the pump current model under different operating conditions, and the fuzzy PID control method is used to improve the control accuracy and response speed of the pump current, so as to overcome the influence of the uncertainty of the pump current parameters and thus improve the dynamic performance of the sensor.The results show that the start-up time of UEGO sensor is less than 20 s, and the temperature control precision is high. The pump current regulation time is 191 ms, and the dynamic response is fast with strong anti-interference ability.