With the development of aviation technology, higher requirements are put forward for the dynamic characteristics of thermocouples. In view of the problem that the existing thermocouple acquisition scheme cannot continuously acquire and obtain the temperature value in real time, a set of thermocouple dynamic characteristics measurement system based on LabVIEW is designed. The working principle, hardware structure and software design of the system are described in detail, and the system is compared with the oscilloscope data collection scheme. The test results show that the system has high reliability and high automation, which effectively improves the working efficiency, and provides support for the performance evaluation of temperature sensors.