A biological information measurement device includes a pulse wave detector having a light emitter for irradiating a living body with light and a light receiver for receiving reflected light of the light emitted from the living body when the light emitter irradiates the living body with the light, and detecting pulse wave information of the living body based on the reflected light received in the light receiver an operator for determining an autonomic nerve function based on the pulse wave information of the living body detected by the pulse wave detector and a controller configured so as to control the pulse wave detector and the operator. The pulse wave detector, the operator, and the controller are provided in a measuring device main body case.
