Transporting an emergent patient t,o a hospital has a crucial role in proper patient care. Ob- jective of this study is to review the current methods and various patient transport system used between the hospital. We have conducted a retrospective analysis of consecutive 753 patients who was transport-in and out from emergency department of YoungDong Severance Hospita! From Sep. 1, 1994 to Feb. 28, 1995. All transferred patients were divided into two large catego- ry of t,rauma versus non-trauma, 363 to 390 patients, respectively. Average ISS(injury severi- ty score) for t,rauma pat.ients were 7.31 point and average GCS score of 14.29 point for non- trauma patient,s. Most of the patients were transferred-in during day and evening hours(84%), but there was no peak hours for transfer-out. Patients. Little more than half of all transferred patients used ambulance as a rnode of transportation. Among all transfer-in patients, 65% were admitted for general care, emergency operation and ICU care. Ot,hers, 17%, 18% wer e discharged or transfer-out to other hospital, respectively. For transfer-out pat.ients, 72% of transfer-out patient,s were for admission following recommandation by an emergency physician. Each level of hospital was divided into 4 subgroup, private clinic, small hospital, general hospital and university hospital. ISS was also divided into score less than 10 points for mild and more than 11 points for moderate to severe injury. As a results, all of patients transferred from private clinic bad less than 4 point of ISS. Where as increasing percentage of patients with higher ISS was transferred-in from higher level of hospitals. Transfer-out hospitals were carefully selected by emergency physicians according to patient health status, specialit.y of re- ferring hospital snd closeness t.o patient residence For non-traumstic patient, GCS score was divided into GCS score 14or less and 15 point. Similar to trauma patient, there was increasing percentage of patient with lower GCS score transfer-in as hospit,al level increase. Patients with ISS less than 10 point and GCS score 15 point can be transferredto anappropriate level of hospital if EMSS operates properly. We suggest with a well organized EMSS, mandatory inter-hospital communication and good transfer record, proper patient transfer and treatment can be achieved.