In order to achieve the purpose of real-time results,this paper presents a traffic sign recognition based on parallel computing.The algorithm first uses a camera mounted on a vehicles to get real-time image [1],which will be detected by color-based algorithm.Then,get the features of the region of interest (ROI) and match them with the existing features (based on parallel computation)[2].Finally,issued a warning message to the driver based on the recognition result so as to achieve further improvement of the car driver assistance system.