The present invention provides a bio-electrode composition comprising a polymer compound having a repeating unit A that contains silver salt of fluorosulfonic acid, silver salt of fluorosulfonimide, or silver salt of fluorosulfonamide. This can form a living body contact layer for a bio-electrode with excellent electric conductivity, biocompatibility, and light weight, which can be manufactured at low cost and does not cause large lowering of the electric conductivity even when it is wetted with water or dried. The present invention also provides a bio-electrode in which the living body contact layer is formed from the bio-electrode composition and a method for manufacturing the bio-electrode.本發明提供一種生物體電極組成物，其可形成導電性及生物體適合性優異、輕量且能以低成本製造，即使被水沾濕、即使乾燥仍不致導電性大幅下降的生物體電極用之生物體接觸層，並提供以該生物體電極組成物形成了生物體接觸層之生物體電極、及該生物體電極之製造方法。一種生物體電極組成物，含有具重複單元a之高分子化合物，該重複單元a具有氟磺酸之銀鹽、氟磺醯亞胺之銀鹽、或氟磺醯胺之銀鹽。
