According　to　the　problem　of　the　stereo　audio　transmission　based　on　Bluetooth,　the　Bluetooth　Advanced　Audio　Distribution　Protocol　(A2DP)　and　Bluetooth　audio　codec　technology　is　introduced　firstly,　and　the　strategy　for　the　Bluetooth　point-to-multipoint　audio　transmission　is　designed.　Meanwhile,　the　hardware　for　the　audio　sender　and　receiver　based　on　the　single-chip　Bluetooth　proposal　are　designed,　and　the　data　processing　flow　for　the　sender　and　receiver　is　discussed　in　detail.　At　last,　the　test　of　the　radio　frequency　and　audio　quality　for　the　system　is　presented.　It　is　proved　that　the　system　resolves　the　problem　of　the　Bluetooth　stereo　audio　transmission,　and　implements　the　synchronization　between　the　left　and　right　channels.　©　2010　Crown　Copyright.