Through researching the principle of the temperature measurement and control, the simple temperature control system based on the infrared temperature sensor is designed. The data acquisition card can finish the task of the data collection, the calculation and the control, so it is not necessary to design other parts. The principles and design methods of the thermoelectric infrared temperature sensor, the measurement circuit, the drive protection circuit, the actuator, the heating device and the power supply are analyzed. The whole temperature mea.surement and control system is a simple structure, a low cost and easily realized. The system can measure and control the surface temperature of the objects well.