The present disclosure relates to a cardiopulmonary resuscitation operation detection auxiliary system and a calibration device. The cardiopulmonary resuscitation operation detection auxiliary system includes a calibration device and a detection terminal bracket. The detection terminal bracket is used to support the detection terminal so that the detection terminal maintains its posture and position; the calibration device includes: a fixing component for fixing the calibration device to the rescuer's wrist Section; marking component, which is arranged on the fixed component and formed into a pattern with predetermined size parameters, the marking component includes a self-luminous structure and/or a reflective structure. The cardiopulmonary resuscitation operation detection auxiliary system of the present disclosure can cooperate with the detection terminal to detect the compression depth of the cardiopulmonary resuscitation through images, with high detection accuracy, and meet the requirements of cardiopulmonary resuscitation.本公開涉及一種心肺復甦操作檢測輔助系統及標定裝置。心肺復甦操作檢測輔助系統包括標定裝置和檢測終端支架,檢測終端支架用於支撐檢測終端,以使檢測終端保持姿態和位置;標定裝置包括:固定部件,用於將標定裝置固定于施救者手腕部;標記部件,設置於固定部件上,並形成為具有預定尺寸參數的圖形,標記部件包括自發光結構和/或反光結構。本公開的心肺復甦操作檢測輔助系統可與檢測終端配合,通過圖像檢測心肺復甦的按壓深度,檢測精度高,滿足心肺復甦的要求。