The　present　is　proposed　a　low　power　RF-transceiver　included　a　receiver　and　a　transmitter.　A　gain　amplifier　and　a　supper　regenerative　divider　construct　an　RF　receiver;　a　voltage　controlled　oscillator　(VCO)　and　a　one　stage　power　amplifier　(PA)　consist　an　RF　transmitter.　The　digital　modulation,　binary　frequency　shift-keying　(BFSK),　is　employed　to　modulate　a　wireless　communication　signal　for　proposed　interactive　intelligent　healthcare　monitoring　system　(IIHMS).　The　gain　amplifier　of　RF　receiver　is　biased　in　sub-threshold　region　for　low　power　application.　The　proposed　RF　transceiver　implemented　in　TSMC　0.18-μm　1P6M　standard　CMOS　process　with　a　chip　area　of　2.47　mm2.　The　measurement　results　show　that　the　power　consumption　of　the　RF　transmitter　and　receiver　are　2.34　mW　and　1.26　mW,　respectively,　under　the　lower　supply　voltage　of　1.2　V.　©　2014　IEEE.