To provide a biological information measurement device burden on the subject may be alleviated by attachment to is easy to change the dimension in the production and long finger, the biological information measuring apparatus includes a body portion, said and a mounting portion for mounting the finger and biological integrally attached to the body portion, and the light receiver light source unit which face each other across a region where the finger is placed when wearing the finger by the mounting portion including the door. Here, the main body portion, and a first terminal portion is electrically connected to the electric circuit and the power supply unit and the electrical circuit including a signal processing unit, the mounting portion, of the light source section and the light receiving portion and at least one portion, and a second terminal portion that is electrically connected to said at least one portion. Further, a first terminal portion and the second terminal portion, is mechanically contact and electrically connected. Then, the signal processing unit, light emitted from the light source unit and transmitted through the finger is based on the signal output from the light receiving unit by being received by the light receiving unit, acquires the digital value of the pulse wave.生産における寸法の変更が容易であり且つ長時間の指への装着による被験者への負担が軽減され得る生体情報測定装置を提供するために、生体情報測定装置は、本体部と、該本体部に一体的に取り付けられており且つ生体の指に装着するための装着部とを備え、装着部による指の装着時に指が配される領域を挟んで対向している光源部と受光部とを含む。ここで、本体部が、信号処理部を含む電気回路と電源部と該電気回路に電気的に接続されている第1端子部とを有し、装着部が、光源部および受光部のうちの少なくとも一方の部分と、該少なくとも一方の部分に電気的に接続されている第2端子部とを有している。また、第1端子部と第2端子部とが、機械的に接し且つ電気的に接続している。そして、信号処理部が、光源部から発せられて指を透過した光が受光部で受光されることによって受光部から出力される信号に基づいて、脈波に係るデジタル値を取得する。
