The invention provides a temperature measuring and data acquisition system of a continuous wind tunnel temperature reduction system. The values of a plurality of temperature control points of the continuous wind tunnel temperature reduction system are respectively measured through an armored integrative temperature transmitter, a patch type temperature sensor, an added temperature transmitter anda thermocouple total temperature bus rack. Furthermore after a temperature transmitter signal and a thermocouple signal are acquired by an analog amount acquisition module and a thermocouple module, adata acquisition controller performs signal analysis processing, wherein a total temperature bus rack thermocouple temperature is used as a temperature control target of a temperature reduction control system. The temperature reduction control system simultaneously monitors the temperature signals of other temperature control points, thereby performing testing data analysis. Interlocked safety monitoring is performed on the signals which affect safety of the wind tunnel and equipment, and all temperature data are uploaded to a wind tunnel core controller. The temperature measuring and data acquisition system has advantages of realizing relatively high testing precision and high response speed, ensuring uniformity in total temperature testing, and testing the key nodes.