PROBLEM TO BE SOLVED: To provide a living body information measurement device that by suppressing influence of a measurement environment without giving a feeling of restriction to a user (living body), is capable of appropriately measuring living body information on pulsation or the like of the user.SOLUTION: A living body information measurement device 100 includes: an illumination unit 110 that irradiates a living body 11 with illumination light； an imaging unit 120 that images the living body 11； and a computation unit 130 that computes living body information on the basis of a difference between pixel data in an irradiation area being an area of the living body 11 irradiated with the illumination light and pixel data in a non-irradiation area being an area of the living body 11 not irradiated with the illumination light, included in pixel data associated with each position in an image generated by the imaging of the imaging unit 120.SELECTED DRAWING: Figure 2【課題】利用者（生体）に拘束感を与えずに測定環境の影響を抑制して、適切に利用者の脈拍等の生体情報の測定を行い得る生体情報測定装置を提供する。【解決手段】生体情報測定装置１００は、照明光を生体１１へ照射する照明部１１０と、生体１１を撮像する撮像部１２０と、撮像部１２０の撮像により生成された画像における位置毎に対応付けられた画素データのうち、生体１１における照明光が照射された領域である照射領域内の画素データと生体１１における照明光が照射されていない領域である非照射領域内の画素データとの差分に基づいて生体情報を算定する算定部１３０とを備える。【選択図】図２
