Aiming at the problem that the ordinary PID control can not effectively suppress the interference noise in the stabilization of the inverted pendulum, the fuzzy control algorithm is used to adjust the PID parameters online in real time. After the design and application of the fuzzy PID controller, the noise suppression effect of the inverted pendulum is analyzed, and the selection of the membership function which affects the control effect is discussed. The results show that the fuzzy PID parameter tuning can play a role in noise suppression, and the fuzzy algorithm is easy to use and has strong adaptability.