The present invention provides a bio-electrode including an electro-conductive base material and a living body contact layer formed on the electro-conductive base material； wherein the living body contact layer contains a resin layer and particles dispersed in the resin layer, the particles being coated with gold, platinum, silver, or alloy of these metals； a thickness of the resin layer is equal to or thinner than an average particle size of the particles； the resin layer contains a silicon-containing resin and a non-silicon-containing resin； and the silicon-containing resin is localized in the direction of a surface of the resin layer. The bio-electrode of the present invention is superior in electric conductivity and biocompatibility, light in weight, can be manufactured at low cost, and can combine repellency of the resin layer surface and adhesion properties of the resin layer to particles.
