Objectives : Our study was designed to assess whether the extract of Angelica gigas can lower serum alcohol and acetaldehyde concentration in drunken rats. Methods : We divided Sprague-Dawley male rats into 3 groups of a Vehicle control, Positive control and Angelica gigas group. Serum alcohol and acetaldehyde levels were checked at baseline, 0.5, 1, 2 and 4 hours after drinking ethanol. Independent t-test was performed to assess the difference of the serum concentrations between the Angelica gigas induced group and the control group. Results : Angelica gigas lowered the serum acetaldehyde concentration. However, it did not lower alcohol concentration effect. Conclusions : We assume that Angelica gigas could be effective for alcohol induced hangover.