PROBLEM TO BE SOLVED: To provide a biological information detector which, when in the detached state, by switching recording of pulse waves and processing of communication from those in the attached state, can perform proper processing on the basis of the pulse wave information.SOLUTION: A biological information detector includes: a pulse wave detecting part 10 which outputs pulse wave sensor signals and a processing part 100 which processes the pulse wave sensor signals. When detecting removal of the biological information detector, the processing part 100 instructs to stop recording of the pulse wave information on the basis of the pulse wave sensor signals or to stop communication of the one, or to record the pulse wave information related with the information which indicates that the pulse wave information is obtained during the removal period, or to perform communication of the related one.COPYRIGHT: (C)2015,JPO&INPIT【課題】 非装着状態である場合には、装着状態である場合に対して、脈波情報の記録、通信の処理を切り替えることで、脈波情報に基づく適切な処理を可能にする生体情報検出装置等を提供すること。【解決手段】 生体情報検出装置は、脈波センサー信号を出力する脈波検出部10と、脈波センサー信号を処理する処理部100を含み、処理部100は、生体情報検出装置の取り外しが検出された場合に、脈波センサー信号に基づく脈波情報の記録又は通信の停止指示、又は、取り外し期間中に取得されたことを表す情報を関連づけた脈波情報の記録又は通信の指示を行う。【選択図】 図3