PROBLEM TO BE SOLVED: To provide a biosensor laminate and a biosensor which can suppress rises and variations in impedance.SOLUTION: A biosensor laminate 1 includes: a pressure sensitive adhesive layer 2 for attachment to a living body and a substrate layer 4 that is disposed on the top surface of the pressure sensitive adhesive layer; a probe 6 which is disposed on the bottom surface of the biosensor laminate; and a moisture barrier layer which is disposed so as to overlap the probe when projected in the thickness direction.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2019,JPO&INPIT【課題】インピーダンスの上昇およびばらつきを抑制することができる生体センサ用積層体および生体センサを提供する。【解決手段】生体センサ用積層体1は、生体に貼付するための感圧接着層2と、感圧接着層の上面に配置される基材層4とを備え、生体センサ用積層体の下面に配置されるプローブ6と、厚み方向に投影したときに、プローブと重なるように配置される水分バリア層とを備える。【選択図】図1