The　technological　challenge　to　realize　wearable　medical　devices　is　to　ensure　low　power　consumption　and　reliable　transmission　of　communication.　Magnetic　resonance　human　body　communication　(MR　HBC)　provides　ideas　to　improve　the　transmission　effect.　Although　the　coil＇s　resonance　properties　have　been　proposed　for　MR　HBC,　the　modeling　and　impedance　matching　for　this　method　are　still　in　the　exploratory　stage.　However,　different　human　impedances　affect　the　coil　resonance　frequency　to　varying　extents,　leading　to　individual　variability　in　the　degree　of　magnetic　coupling.　This　paper　analyzes　the　influence　of　human　tissues　on　the　coil　through　finite　element　method　(FEM)　simulation　modeling.　This　effect　can　be　eliminated　by　employing　a　dual　tunable　capacitor　matching　method　based　on　the　field-circuit　combination.　By　dynamically　adjusting　the　values　of　the　dual　tunable　capacitors　in　real-time,　the　human　body　and　the　coil　can　be　tuned　to　a　resonant　state,　effectively　improving　the　degree　of　magnetic　coupling.　The　results　reveal　that　the　proposed　method　enhances　the　communication　gain　by　38.91-42.02　dB　at　the　preset　frequency　for　different　human　tissues.　In　vivo　experiments　verify　that　the　method　eliminates　the　effect　of　different　human　impedances　on　the　coil,　which　is　of　great　significance　for　further　improving　the　performance　of　MR　HBC.