Abstract: Driver fatigue is one of the important factors that cause traffic accidents, and the increasing number of accidents due to lessened driver acuity and diligence level has become a problem of serious concern. Therefore, how to avoid this problem has become a topic of discussion. In order to detect and remove this cause of road accident many driver fatigue detection methods have been proposed which can detect the mind state of driver such as drowsiness or inattention, for generating some warning alarms to alert the driver. In this paper we have discussed some of the method that can be used to detect the driver fatigue. And on the basis of our study, we have proposed a new technique that can improve the results of the earlier discussed methods.