Abstract: An analysis of cerebral resuscitation on 70 cases, 131 times of cardiac arrest wasmade . Spontaneous circulation reestablished≤5min, the cerebral resuscitation rate was 84.4%;spontaneous respiration recovered≤5min. the cerebral resuscitation rate was 95.5%. Circulationor respiration reestablished beyond 5 min, cerebral resuscitation rates all decreased, P＜0.05 0.0.The lst time of cardiac arrest happened in the scene （including emergency room） the cer-ebral resuscitation rate was 34.9%, in-hospital it was 8l.5%; the discharge rates were 32.6%＆63.0%respectively （P＜0.05 0.01）. The internal environmental faoctors related closely tocerebral resuscitation rates before ＆ after cardiac arrest were analysed and the measurements toimprove the the- rapeutic effects were suggested.