Objective:To study the emergency management principles of severe trauma in hospital(injury severity score≥16). Methods:We used“ATP principle”to manage severe traumatic patients.The ATP principle is composed of:1)attending surgeons offering initial management(A); 2)teamwork commencement immediately after patients admitted to hospital(T);3)parallel principle,ie, emergency resuscitation,evaluation and laboratory test performed simultaneously(P).Clinical effects before and after applying ATP principle were retrospectively analyzed and compared. Results:During January 1,2002 to December 31, 2003,338 patients were treated without applying ATP principle,in which ISS was 25.9±6.4,152 cases died with the mortality being 39.2%,and the time stayed in emergency department and the time to operation room after admission were(102.8±16.7)min,(140.3±20.6)min, respectively.During January 1,2004 to December 31, 2005,438 patients were treated based on ATP principle,in which ISS was 28.6±7.8,87 cases died with the mortality being 19.9%,and the time in emergency department and the time to operation room after admission were(69.5±11.5)min,(89.6±9.3)min,respectively.ISS showed no significant difference between the two groups(P>0.05), but the mortality,the time stayed in emergency department and the time to operation room after admission were greatly reduced and showed significant difference between the two groups(P<0.05). Conclusions:Applying ATP principle to treat severe traumatic patients can shorten emergency treatment time in hospital and decrease mortality. Objective: To study the emergency management principles of severe trauma in hospital (injury severity score ≥ 16). Methods: We used “ATP principle” to manage severe traumatic patients. ATP principle is composed of: 1) attending surgeons offering initial 2) teamwork commencement immediately after patients admitted to hospital (T); 3) parallel principle, ie, emergency resuscitation, evaluation and laboratory test performed simultaneously (P). Clinical effects before and after applying ATP principle were retrospectively analyzed and compared. Results: During January 1,2002 to December 31, 2003,338 patients were treated without applying ATP principle, in which ISS was 25.9 ± 6.4,152 cases died with the mortality being 39.2%, and the time stayed in emergency department and the time to operation room after admission were (102.8 ± 16.7) min, (140.3 ± 20.6) min, respectively. January 1,2004 to December 31, 2005,438 patients were treated based on ATP principle, in which ISS was 28.6 ± 7.8,87 cas es died with the mortality were 19.9%, and the time in emergency department and the time to operation room after admission were (69.5 ± 11.5) min, (89.6 ± 9.3) min, respectively .ISS showed no significant difference between the two groups P> 0.05), but the mortality, the time stayed in emergency department and the time to operation room after admission were significantly reduced and showed significant difference between the two groups (P <0.05). Conclusions: Applying ATP principle to treat severe traumatic patients can shorten emergency treatment time in hospital and decrease mortality.