The research and development bicycle airbags is to develop a new passive protection device for bicycles and elec-tric vehicles,the device uses a single-chip microcomputer as the central control unit,plus other electronic components,and uses electrical signals to trigger the airbag to deploy to protect the cyclist.The collection of cycling data adopts the electron-ic gyroscope to obtain the real-time status of cycling,and uses the characteristics of high precision,fast transmission speed,high adaptability and real-time of gyroscope to improve detection accuracy and reduce the volume and weight of the entire device.