Background　The importance of perioperative anesthesia depth monitoring has been recognized. Sedation， analgesia and antinociception， muscle relaxation are the main component of general anesthesia. At present， some methods of monitoring the depth of sedation and muscle relaxation have been successfully applyed in clinical anesthesia. However， there is little mature means of monitoring the level of analgesia/antinociception， so research on this field has become a hot spot in recent years and has achieved some progress.　Objective　To promote the research on analgesia/antinociception monitoring.　Content　In this review， the current related parameters and methods of perioperative analgesia/antinociception motoring are summarized， and their principle， practicality， advantages and disadvantages are introduced.　Trend　Searching for an ideal analgesia/antinociception monitoring method still has a long way to go， method that based on electroencephalogram of analgesia/antinociception monitoring has a certain application prospect.