Abstract: Electronic skin refers to a device that imitates the characteristics of human skin and has similar perception functions. Benefiting from its excellent wearability and versatility, it has shown great applications in the fields of health monitoring, human-computer interaction and machine perception in recent years and has attracted much attention.This article summarizes the research progress of electronic skin in recent years from three aspects of material properties, functional properties and typical applications. It focuses on how to realize the stretchability, self-repairing and biocompatibility of electronic skin, and the real-time monitoring of physical, chemical and electrophysiological signals. Finally, the challenges and possible solutions for the further development of electronic skin are discussed and prospected.As an emerging research hotspot, electronic skin requires the cooperation of scientists in many fields, such as materials science, informatics, engineering, and biology, in order to fully realize its potential.