During 6 years, the number of motorcycle accidents were up to 122 300 in 2003, which was the highest, and then gradually decreased. However, the casualty had the tendency of consistent increase, for example, the motorcycle accidents resulted in 26 200 deaths and 157 500 injuries in 2005. The mortality per 10 000 motorcycles and the ratio of deaths to injuries were lower than those of automobiles, but the mortality per 100 motorcycle accidents was significantly higher than that of automobiles