High-energy X-ray point-projection radiography technology based on the picosecond petawatt lasers has the characteristics of high temporal and spatial resolution. It has important application value in the dynamics research under the laser load and ICF research, and can solve the key diagnostic problems in the research process to obtain important physical data. National laboratories in the United States and Europe have carried out long-term research work in this area, and have profound accumulation in light source generation, parameter diagnosis, photography technology, etc. They have begun to obtain quantitative experimental data in applied research. In China, the Key Laboratory of Plasma Physics, Laser Fusion Research Center, China Academy of Engineering Physics, has carried out a large number of theoretical and experimental studies to meet the needs of dynamic response of material and ICF research under strong loading conditions, and initially established the high-energy X-ray source with high brightness and micro focus, which has      good temporal and spatial resolution and surface density resolution. A series of X-ray diagnostic techniques have also been developed to realize the accurate measurement of the characteristics of the X-ray source. In addition, the point projection backlight radiography technology with good anti-radiation ability has been established to ensure the acquisition of high-quality backlight photographic images. These research results have greatly improved the ability of high-space-time resolution perspective radiography for high-surface-density objects. Great application results in micro-jetting dynamic process of metal material and ICF implosion have been obtained, which has laid a solid foundation for further research and application such as dynamic properties of materials, ultrafast dynamics, and ICF physics under extreme conditions.