Characterization　of　the　human　body　as　a　transmission　medium　for　electrical　signals　is　a　necessity　for　using　intrabody　communication　(IBC)　technique　into　connecting　wearable　electronic　sensors　and　devices.　In　this　paper,　we　propose　a　novel　multilayer　distributed　circuit　model　for　galvanic-coupling　type　IBC,　which　is　emphasized　on　the　propagation　characteristics　in　contrast　with　other　IBC　models.　Based　on　the　model,　a　program　is　written　in　MATLAB　to　investigate　the　propagation　characteristics　of　a　human　body　channel　with　the　frequency　of　10MHz　to　20MHz　and　the　distance　of　5　cm　to　10　cm.　Finally,　a　galvanic　coupling　IBC　measurement　is　implemented　to　verify　the　proposed　model.　The　outcome　proves　that　the　model　is　valid　and　correct.　©　2018　Zhi　Ying　Chen　et　al.