Using the Peltier effect of semiconductor materials,it can be applied to car cup holders to achieve heating and cooling of beverages.The entire temperature control system for the car heating and cooling cup holder is nonlinear and has time delays.Therefore,a temperature control sys-tem based on fuzzy PID control is proposed.Based on the mathematical model analysis of the car heat-ing and cooling cup holder system,a simulation model based on fuzzy PID control has been estab-lished.Simulation results show that under heating and cooling conditions,fuzzy PID control has a short adjustment time,small overshoot,and good robustness,which can better meet the temperature control requirements.