PROBLEM TO BE SOLVED: To provide a biomedical electrode or the like which accurately detects a biopotential signal while reducing a burden of measurement on a measured person, and can be used for a long term.SOLUTION: A biomedical electrode 10 comprises an adhesive sheet 11 to adhere to a measured person and a detection electrode 12 for detecting a biopotential signal. The detection electrode 12 is placed on the opposite side 11N of the adhesive sheet 11, the side being opposite from a side 11T to adhere to the outer surface of the measured person, and the adhesive sheet 11 is made of resin and has a dielectric constant of 30 or more and 80 or less.SELECTED DRAWING: Figure 1【課題】 被測定者の測定負担を軽減させつつ、高精度に生体電位信号を検知し、かつ、長時間の使用に耐えられる生体用電極等を提供する。【解決手段】 被測定者に貼り付ける粘着シート11と生体電位信号を検知する検知電極12とを含む生体用電極10では、検知電極12は、粘着シート11の被測定者の外表面への貼付面11Tに対する反対面11Nに配置され、粘着シート11は、樹脂製で、30以上80以下の比誘電率を有する。【選択図】 図1