Background: The emergency treatment of multiple trauma patient includes rapid evaluation of mental status, triage and resuscitation. The principles of Advandced Trauma Life Support consist of primary survey & resuscitation, secondary surveys and definitive cares. In primary survey, the mental status is evaluated by AVUP scale, and GCS(Glasgow coma scale) is used in secondary survey because the calculation of GCS needs more times than AVPU scale. Purposes: Is there a conelation between AVPU scale and GCS as an evaluation method of mental status in trauma ? Subjects: 434 injured patients(male 321, female 113, mean age 35.9 years) who had visited the emergency center of Wonju Christian Hospital was evaluated prospectively. The mental status was evaluated by AVPU scale and GCS by emegency physician as soon as the patients was admitted to emergency center. Results' Alert patients as AVPU scale were ranged from 14 to 15 of GCS, patients who responded to verbal command were from 9 to 14 of GCS, patients who responded to pain stimuli were from 4 to 10 of GCS, and patients who did not respond to pain stimuli were from 3 to 5 of GCS. The linear correlation of AVPU scale and GCS was seen(r2=0.90). Conclusion: This study suggest that AVPU scale was vey closely correlated with GCS.