This temperature sensor detector adopts semiconductor refrigeration technology to produce the temperature generator, intelligent PID temperature control technology to design the temperature control device, and a single chip to realize the intelligent control of data collection and detection processes. Through tests, it proved that various indices all satisfy the technical requirements for field detection and by comparing this detector with the regular laboratory detection and field calibration devices used in national automatic meteorological stations, the results of three devices are basically consistent. The temperature increase and decrease of this detector is fast, and it is portable and easy to operate. The detecting accuracy can satisfy the quality evaluation requirements of temperature detecting data in regional stations,which provide effective and feasible technical guarantee for the field testing of temperature sensor detectors in regional automatic weather stations.