Abstract: As an emerging technology, flexible electronics is fabricated by integrating flexible organic/inorganic functional materials and flexible substrates using unconventional manufacturing techniques.Compared to conventional electronics，flexible electronics are more compatible for advanced applications such as wearable electronics，human-machine interfaces and soft robotics due to their exceptional mechanical performance.Soft polymers play a crucial role in fabricating flexible electronics. They can be widely used as flexible substrates，functional components, and interfacial modification materials.In certain cases, the intrinsic properties of functional polymers determine the ultimate performance or specific applications of flexible electronics were summarized

Key words: flexible electronics, functional polymer material, flexible substrate, interface engineering, self-healing