The High-Resolution Polarimetric Interferometric Synthetic Aperture Radar (PolInSAR) is primarily designed to accurately acquire three-dimensional spatial positions, deformations, and velocities of targets within the observation area, as well as precise polarimetric interference information about these targets. It boasts real-time imaging capabilities with 1m elevation accuracy and 0.3m high resolution. This radar system is capable of providing high-resolution radar image data, digital surface models, fully polarimetric radar image data, polarimetric interferometric radar image data, and moving target detection capabilities in the X-band under all-weather and all-time conditions. By leveraging these image data, it can precisely retrieve the positional information of targets, obtain geometric and polarimetric information about ground objects, retrieve physical information about target composition, and perform target classification. It can be widely applied in various fields, including topographic mapping, urban planning, scientific research, and national security. As a crucial device in the airborne remote sensing system, it plays a vital role in advancing these applications.