High-confidence high-intensity electromagnetic pulse testing technology, as an important and basic technology in the field of high-intensity electromagnetic pulse research, has been attracting great attention from domestic and foreign scientific researchers in recent years. In this article, we mainly review the current research progress of high-confidence high-intensity electromagnetic pulse testing technology from the aspects of antenna (sensor) and signal transmission distortion compensation. Moreover, considering the development trend of high-intensity electromagnetic pulse generation technology, high-intensity electromagnetic pulse effect and protection, we try to expound the challenges of high-intensity electromagnetic pulse testing, and make a preliminary prospect on the development of high-confidence high-intensity electromagnetic pulse testing, providing a reference for researchers in the field of high-intensity electromagnetic pulse technology.