Objective To explore the improvement of cardiopulmonary resuscitation (CPR) efficiency by rescue team through the clinical access to pre-hospital care.Methods Mter establishment of clinical approaches to cardiac arrest,the training program of first line personnel of rescue teams in the Hangzhou Emergency Center was carried out with practice on simulated patients and scenario.A total of 45 eligible teams were randomly enrolled for study by observing the performance of some essential resuscitation techniques before and after training.Result The efficiency of resuscitation performed by rescue team for cardiac arrest was generally not good enough before training evidenced by the shortage of application of ECG monitoring,endotracheal intubations and establishing intravenous line which were only 8 (17.8％),5(11.1％),6 (13.3 ％),respectively,and the interruption time of chest compression during the first three minutes was (102.13 ± 13.68) seconds and the successfully artificial respiration ratios by assistant members was (0.37 ± 0.09),and ratios of ECG forensics and written inform consent were 8 (17.8％) and 6 (13.3％) respectively,CPR and forensics done simultaneously was only 2 (4.4％).The efficiency of rescue for cardiac arrest was obviously improved after training by the clinical approaches proved by the increase in application of ECG monitoring,endotracheal intubations,intravenous line set up reached to 45 (100％),43 (95.6％),43 (95.6％),respectively,and the interruption time of chest compression during the first three minutes was shorten to (69.7 ± 7.7) seconds and the successfully artificial respiration ratios done by assistant members was (0.57 ±0.12) after training.The ratios of on-site ECG forensics and written inform consent were 40 (88.9％) and 43 (95.6％),respectively,and CPR and evidence obtained simultaneously was up to 36 (80.0％).The efficiency of work done by teams was obviously improved and the risk of miserable events was controlled.Conclusions The clinical approaches to cardiac arrest in prehosptial care is the efficient strategy to rescue the patient with cardiac arrest and it is worthy to popularize at present.