Abstract：Pointing at the poor compatibility and not supporting the third party application of traditional vehicle operating system which leads to low level custom function problems of users, with strong compatibility and extension of third terminal operating system-Android as the development platform, compiling application program by Java language, a software was designed for vehicle hands-free system based on Android platform.The software system realizes the function demand of vehicle terminal hands-free system through Bluetooth technology, based on Bluetooth hands free profile (HFP) and advanced audio distribution profile (A2DP) .The testing results show that the operation of hands-free applications occupies only about 300 k B of memory, running smoothly, can support hands-free phone, data synchronization, music playback and other basic functions demand at the same time, also adds a call automatic answering function, meeting the higher requirements of the vehicle hands-free terminal system.

Keyword：Android platform;vehicle hands-free system;Bluetooth technology;vehicle operating system;