Under the atmosphere of the strong appeal for environmental protection and healthy society, the government is strongly supporting the use of MRT and bicycle-based transport. However, in comparison with cars and motorcycles, the bicycle traffic safety needs to be further strengthened. How to apply to the wisdom of science and technology to enhance the quality of life is important direction of the efforts to be done by our scientists and technologist. In recent years, the wedding industry applied much use of LED, and under the catalysis of the creative arts, it created a lot of fashion. In order to improve security we used lightweight portable concept, designed adhesion type traffic safety sound emitting turn signal lights, having the function of both turning signal and sound to remind the rear car.