Leadless　pacemakers　(LCPs)　have　emerged　as　a　viable　solution　to　mitigate　the　side　effects　associated　with　traditional　pacing　leads.　Nevertheless,　the　absence　of　suitable　intracardiac　communication　methods　restricts　most　LCPs　to　single-chamber　pacing.　Galvanic　conductive　communication　(GCC)　offers　a　promising　approach　for　achieving　intracardiac　communication　in　multichamber　LCPs.　However,　impedance　mismatch　between　the　receiver　and　myocardium　during　the　cardiac　cycle　can　lead　to　a　reduction　in　path　gain,　thereby　affecting　communication　stability.　This　article　proposed　a　dynamic　compensation　method　to　reduce　impedance　mismatch　and　enhance　communication　stability.　We　developed　a　simplified　LCP　system　with　dynamic　path　gain　compensation　and　validated　it　on　an　ex　vivo　porcine　heart　dynamic　experimental　platform.　The　results　demonstrated　a　path　gain　improvement　of　9.23　dB　and　a　reduction　in　path　gain　variation　from　3.95　to　0.3　dB.　Additionally,　the　bit　error　rate　(BER)　decreased　by　over　50%　across　various　transmission　rates,　with　the　most　significant　improvement　observed　at　5　kbps,　where　it　decreased　by　82.7%.　These　findings　provide　a　high-reliability　solution　for　intracardiac　communication　and　establish　a　foundation　for　future　multichamber　sequential　pacing　applications　in　LCPs.　　©　2025　IEEE.