Provide a garment that allows subjects of various sizes or sizes to walk, walk up and down stairs, etc. in daily life, covering a long period of more than 1 week, comfortably and easily detect ECG analysis, etc. can diagnose diseases and complex Stable signal with less signal. The biological signal monitoring clothing of the present invention is characterized by comprising: a biological signal measuring device； two or more electrodes in contact with the skin； and a clothing body portion, which carries the biological signal measuring device and the biological signal measuring device The conductor of the foregoing electrode, and an elastic body having a length of 30% or more and 60% or less of the waist circumference of the chest portion of the subject is fixed to the waist of the clothing member.提供一種衣物，使各種體型或尺寸的受驗者於包含步行、上下樓梯等的日常生活中，可在涵蓋1週以上的長時間範圍，舒適且簡便地檢測出心電圖分析等能診斷疾病且雜訊較少的穩定信號。本發明之生物體信號監視衣物，其特徵為具備：生物體信號計測器；與皮膚接觸之2個以上的電極；及衣物本體部，其於衣料構件載持了連接前述生物體信號計測器與前述電極之導電體，並將具受驗者的胸口部分之腰圍長度的30%以上60%以下長度之彈性體固定在前述衣料構件的腰部。
