Evapotranspiration (ET) encompasses water loss through transpiration and evaporation from soil and water surfaces. Accurate observation of ET is essential for comprehending the ET process, and mechanism, as well as water-energy nexus and land-atmosphere feedback. ET serves as a pivotal link between the hydrological cycle and energy processes. In-situ measurements provide fundamental datasets for validating remotely sensed ET products. The surface renewal theory differs from the commonly used eddy covariance method in describing the physical ET process. Unlike the expensive sonic anemometers in the eddy covariance system, the surface renewal method is cost-effective because it uses a fine- diameter thermocouple to record high-frequency air temperature and estimate the sensible heat flux through coherent structures. The surface renewal method for measuring ET, with an accuracy comparable to that of the eddy covariance system, and it has been widely applied for ET measurements in America and Europe. Recognizing the substantial potential of this method, this paper reviews the theory of surface renewal and research advancements in the method made over the past 30 years. Additionally, preliminary studies related to ET measurements in China using the surface renewal method are also presented. By summarizing this progress and exploring the challenges in the application of the surface renewal method, we can enhance our understanding and promote a variety of domestic ET observation methods.