PROBLEM TO BE SOLVED: To provide a biological information measurement device that can suppress wavelength shift of a spectral part depending on the use angle thereof to measure biological information accurately, and to provide a biological information measurement method.SOLUTION: An angle detection part 80 detects an installation angle of a biological information measurement device 1. The biological information measurement device corrects a control voltage of a spectroscopic element 26 based on the installation angle to suppress wavelength shift of the spectroscopic element 26.SELECTED DRAWING: Figure 8COPYRIGHT: (C)2018,JPO&INPIT【課題】使用角度による分光部の波長シフトを抑制し、精度良く生体情報を測定できる、生体情報測定装置及び生体情報測定方法を提供する。【解決手段】生体情報測定装置1の設置角度を角度検出部80によって検出し、その設置角度に基づいて、分光素子26の制御電圧を補正することで、分光素子26の波長シフトを抑制する。【選択図】図8