The　galvanic　coupling　intra-body　communication　(IBC)　is　a　novel　short　distance　information　transmission　method　for　Body　Area　Networks.　It　uses　human　body　as　the　transmission　media　to　realize　data　transmission　and　sharing　among　all　the　electronic　devices　scattered　on,　in　or　around　the　human　body.　It　is　especially　suitable　for　information　interactions　for　long　term　and　continuous　medical　signal　detections　for　human　bodies　for　wearable/implanted　medical　devices.　Based　on　the　principle　analysis　of　the　galvanic　coupling　IBC　previously,　this　paper　attempted　to　design　a　highly　reliable　and　stable　transceiver.　The　transmitter　modulated　the　base　band　signal　with　2CPFSK　(2　continuous　phase　FSK)　and　converted　it　into　alternating　current　signal　suitable　for　human　body　transmission.　The　receiver　collected　the　coupling　voltage　signal　differentially,　and　then　demodulated　it.　Finally,　the　transceiver　completed　the　data　transmission　in　the　case　of　signal　person　and　many　people　with　finger-touching.　It　provided　a　successful　experience　for　the　development　and　practical　application　of　IBC　and　Body　Area　Networks.　©　2012　ICST.