To provide an information measurement device which can be easily mounted and removed.SOLUTION: An information measurement device has a sensor which measures biological information or movement information, a first attachment member attached to a mount member which is provided in an inner side of a head gear and can be mounted on a head, and a second attachment member, a second attachment member which is removably attached to the first attachment member, holds the sensor, and has an opening for exposing a detection part of the sensor.SELECTED DRAWING: Figure 1【課題】 容易に着脱可能な情報測定装置を提供する。【解決手段】 情報測定装置は、生体情報又は動作情報を測定可能なセンサと、頭部装着具の内側に設けられ頭部に装着可能な装着部材に取り付けられる第１取付部材と、前記第１取付部材に対して着脱可能に取り付けられる第２取付部材であって、前記センサを保持するとともに、前記センサの検出部を表出する開口部を有する第２取付部材とを含む。【選択図】図１
