Abstract: Recent research progress of the TSP (Temperature Sensitive Paint) technique in China Aerodynamics Research and Development Center(CARDC) is summarized in the respects of fundamental principles, development of critical technology and its applications. A series of critical techniques have been developed including the dynamic temperature-sensitive luminescent material, the model construction and the data processing. A system integration has been collocated for the image acquisition system, the optical system and the calibration system. The TSP technique becomes increasingly suitable and practicable to be used in shock tunnel due to the measurement and calibration system. With the high spatial resolution images, the TSP technique could show the heat-flux distribution of main surface area of a vehicle. According to the detailed information of heat transfer, further data analyses can be actualized such as differentiating flow pattern and pinpointing transition location of boundary layer. Furthermore, the results of TSP technique are in good agreement with that obtained by conventional point sensors measurement. The TSP technique has been successfully applied in the experiment research on the boundary layer transition, the aerothermal environment in local interference regions and the heat-transfer on hypersonic vehicles with complex configurations. Currently, TSP technique has been developed as an improvement of heat-transfer measurement method in addition to the traditional discrete point measurement method in CARDC.