PROBLEM TO BE SOLVED: To accurately distinguish the type of a living body. A biological information output device (10) includes an irradiation unit (1) that irradiates an occupant's body surface with electromagnetic waves, a reception unit (22) that receives reflected waves reflected by the electromagnetic waves on the body surface, and electromagnetic waves. Information on the distance to the body surface of the living body obtained by processing the I signal obtained by multiplying the signal and the reflected wave signal and the Q signal obtained by delaying the I signal by a predetermined phase is output, and the I signal and the Q are output. The reception intensity of the reflected wave is output from the diameter of the circle drawn by the signal point obtained by expanding the signal on the complex plane, and from the displacement angle in the range where the signal point is displaced with respect to the center of the circle on the circle. A reception information processing unit (41) that outputs the phase change amount of the reflected wave, and an occupant determination unit (5) that determines the type of the living body based on the distance, the reception intensity, and the phase change amount. [Selection diagram] Fig. 2【課題】生体の種別を正確に区別する。【解決手段】生体情報出力装置（１０）は、乗員の体表面に電磁波を照射する照射部（１）と、電磁波が体表面で反射した反射波を受信する受信部（２２）と、電磁波の信号と反射波の信号とを乗算したＩ信号と、当該Ｉ信号を所定の位相だけ遅らせたＱ信号とを処理して得られる生体の体表面までの距離の情報を出力し、Ｉ信号とＱ信号とを複素平面に展開して得られる信号点が描く円の直径から、反射波の受信強度を出力し、当該円上で信号点が前記円の中心に対して変位する範囲の変位角度から、前記反射波の位相変化量を出力する受信情報処理部（４１）と、前記距離、受信強度および位相変化量に基づいて生体の種別を判定する乗員判定部（５）と、を備える。【選択図】図２
