[Problem] A bioelectrode composition that is excellent in conductivity and biocompatibility, is lightweight and can be manufactured at low cost, and can form a biocontact layer for bioelectrodes that does not significantly decrease conductivity even when wet or dry, Provided are a bioelectrode in which a biocontact layer is formed with this bioelectrode composition, and a method for manufacturing the same. [Solutions] (A) A bioelectrode composition comprising a reaction complex of a monomer having an ionic functional group and carbon particles, wherein the component (A) is fluorosulfonic acid, fluorosulfonimide and N-carbonylfluoro A bioelectrode composition comprising carbon particles bonded to a monomer having a structure selected from any one of ammonium salt, lithium salt, sodium salt, potassium salt, and silver salt of sulfonamide.
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