PROBLEM TO BE SOLVED: To provide a biological information measuring device (bedside monitor) capable of securing operational reliability and flexibly expanding a measurement function.SOLUTION: A biological information measuring device is provided with: a first arithmetic processing part 13 which operates on a first OS (assembled OS) 11 and performs arithmetic processing of first biological information measured by a first measurement part 21 to generate a first arithmetic processing signal； and a second arithmetic processing part 14 which operates on a second OS (general-purpose OS) 12 having high function expansibility and uses the first arithmetic processing signal transmitted by the first arithmetic processing part 13 to generate a second arithmetic processing signal. An output control unit 15 capable of receiving the first arithmetic processing signal generated by the first arithmetic processing part 13 and the second arithmetic processing signal generated by the second arithmetic processing part 14 outputs at least one of the received arithmetic processing signals.【課題】動作信頼性を確保するとともに、測定機能の拡張を柔軟に行うことができる生体情報測定装置（ベッドサイドモニタ）を提供する。【解決手段】第１のＯＳ（組込ＯＳ）１１上で動作し、第１の測定部２１によって測定された第１の生体情報を演算処理して第１の演算処理信号を生成する第１の演算処理部１３と、拡張機能の高い第２のＯＳ（汎用ＯＳ）１２上で動作し、第１の演算処理部１３から送信されてきた第１の演算処理信号を用いて第２の演算処理信号を生成する第２の演算処理部１４を設ける。第１の演算処理部１３で生成された第１の演算処理信号と第２の演算処理部１４で生成された第２の演算処理信号を受信可能な出力制御部１５によって、少なくとも一方の受信した演算処理信号を出力する。【選択図】図１
