BIOELECTRODE

Provided is a bioelectrode including: a substrate plate having a plurality of through holes spaced apart from each other; a plurality of electrode parts; and a fixing plate mounted to a protruding portion of a connection terminal. Each electrode part includes: a covering layer; a connection terminal which is conductive and passes through the covering layer; and a conductive gel layer which is electrically connected to the connection terminal, and is to be brought into contact with a living body. The connection terminal includes a protruding portion protruding from the covering layer, and the protruding portion passes through one of the plurality of through holes of the substrate plate. A size of each of the plurality of through holes of the substrate plate is a size that allows the protruding portion of the connection terminal to be inserted therethrough, and is smaller than a size of the fixing plate.