PROBLEM TO BE SOLVED: To provide a biological information detection device, a detection device, electronic equipment, etc. capable of reducing power consumption by controlling a current value in operating a light emitting part intermittently.SOLUTION: A biological information detection device 100 includes a light emitting part 110 for emitting a light to a subject, a light receiving part 120 for receiving a reflection light or a transmission light from the subject, and a current control part 130 for supplying the light emitting part with a current signal for causing the light emitting part to emit a light. The current control part supplies the light emitting part with the current signal whose current value is larger in a first period of the light emitting period of the light emitting part than in a second period of the light emitting period.SELECTED DRAWING: Figure 2【課題】発光部を間欠動作させる際の電流値を制御することで、消費電力を低減する生体情報検出装置、検出装置及び電子機器等を提供する。【解決手段】生体情報検出装置100は、被検体に光を出射する発光部110と、被検体からの反射光又は透過光を受光する受光部120と、発光部を発光させる電流信号を発光部に供給する電流制御部130を含み、電流制御部は、発光部の発光期間のうちの第1の期間では、発光期間のうちの第2の期間に比べて大きい電流値の電流信号を、発光部に供給する。【選択図】図2