PROBLEM TO BE SOLVED: To provide a biological signal measuring instrument which accurately detects a biological signal by following a complicated movement of a living body, reduces detection defect and transmission defect of a signal attributed to wiring, causes little sense of restriction attributed to the wiring, and causes little discomfort when worn for many hours.SOLUTION: The biological signal measuring instrument includes at least a detection part for detecting a biological signal and wiring for transmitting the signal from the detection part. The wiring has elasticity of 10% or more and a change of electric resistance accompanying expansion and contraction is below 10%.COPYRIGHT: (C)2010,JPO&INPIT【課題】生体の複雑な動きに追従して生体信号を正確に検出し、配線に起因する信号の検出不良及び伝送不良を減少し、配線に起因する拘束感がほとんど無く、長時間の装着において不快感が少ないワイヤーを用いた生体信号測定装置を提供すること。【解決手段】生体信号を検出する検知部および該検知部からの信号を伝送する配線を少なくとも含み、該配線が10%以上の伸縮性を有し、伸縮に伴う電気抵抗変化が10%未満であることを特徴とする生体信号測定装置。【選択図】図1