Abstract: RF Smart Skin (RFSS), as an advanced composite structure integrating load-bearing and electromagnetic functions, has demonstrated significant application potential in aerospace, defense and military and wireless communication fields. Its core advantages are reflected in the conformal characteristics, multifunctional integration and dynamic adaptability, and it realizes the double breakthrough of intelligent regulation of electromagnetic wave and dynamic stealth through the synergistic design of curved conformal antenna, distributed sensor network and smart materials. This paper discusses the influence of multi-field coupling effect, advanced material and additive manufacturing technology, and monitoring and control strategy on the composite structure, dynamic control and electrical properties of RFSS system, and compiles the relevant research progress of RFSS, focuses on the role of multi-field coupling effect on its mechanism, and summarizes the technical bottlenecks and innovation trends encountered, which can provide theoretical references for the academic research and engineering applications in the related fields. It also summarizes the technical bottlenecks and innovation trends encountered, which can provide theoretical references for academic research and engineering applications in related fields.