This thesis investigates the characteristics of brainwave using wavelet analysis method and classification and regression trees. Recently brainwave has been applied to wider and wider fields. However, it is very difficult to extract useful information from brainwave due to its complex nature. In this research we selected a commercial simple EEG to reduce the expense. Wavelet analysis is employed to analyze collected data, and using classification and regression trees to induction characteristics of brainwave. The result is applicable to navigation of ground or aerial vehicles in the future.