Due to drunk-driving fatality is the most focal issue in the U.S. traffic accident, this paper applies panel data model to analyze the influence of beer tax and other drunk-driving related laws on the U.S. drunk-driving fatality rate from 1982-2006. Different from former references, this paper investigate if the drunk-driving fatality rate declines by the time and by region. The result shows that drunk-driving fatality rate has declined by the time, especially, in 1987; the drunk-driving fatality rate statistically significant drops. The posibility is that U.S. Secretary of Transportation, Elizabeth, ordered the automobile manufactures to set seat belt or air bag with the cars from 1987. However, the drunk-driving fatality rate doesn¡¦t show different significantly by region. This may suggest that regions have similar laws and cultural norms, which leads to similar drunk-driving fatality rate. Finally, the survey indicates the higher beer tax, BAC 0.08 Law, and Zero Tolerance Law are effective policies to reduce drunk-driving.