Abstract:The temperature regulation system of modern air conditioning mainly uses single-chip microcomputer to control the relay's on-off and control the rotation of the fan to regulate the temperature. This method is simple, but the control effect is poor, so it can't achieve the effect of precise control. This paper first introduces the PID path, and then by means of fuzzy logic control; fuzzy PID control method, and the improvement of science, let the temperature controlled in fuzzy control system, the formation of feedback regulation; then adjust the design parameters of the control system; finally, using Matlab Simulink simulation experiment, using fuzzy logic (fuzzy logic) provided by LabVIEW module and simulation module (simulation module) control system simulation results establish and validate the control system. Results after the signal was passed through the control system, the error was very small, and achieved a good control effect. It can be used in the automatic temperature control system of air conditioner, and has great practical value.