To provide a biometric electrode device capable of securing a wide contact area for a living body in a stable manner, which can be used for a long time or repeatedly with less feeling of discomfort given to the living body.SOLUTION: A biometric electrode device includes: a rubber electrode part formed of rubber containing a conductive body; a signal processing circuit for receiving an electric signal from the rubber electrode part and processing the electric signal; a support member, on one surface side of which the rubber electrode part is disposed, and on the other surface side of which the signal processing circuit is disposed; and a conductive yarn that penetrates through the rubber electrode part and the support member, and electrically connects the rubber electrode part to the signal processing circuit.SELECTED DRAWING: Figure 2【課題】生体への広い接触面積を安定して確保することができ、生体に与える不快感が少なく、長時間または繰り返し使用することができる生体測定電極装置を提供する。【解決手段】生体測定電極装置は、導電体を含有するゴムで形成されたゴム電極部と、ゴム電極部からの電気信号を受けて当該電気信号を処理する信号処理回路と、ゴム電極部が一方の面側に配置され、信号処理回路が他方の面側に配置された支持部材と、ゴム電極部と支持部材とを貫通し、ゴム電極部と信号処理回路とを電気的に接続する導電性糸とを備える。【選択図】図2