The present invention relates to a body detection device that detects light emitted from a body. A body detection device attached to a body, comprising: a power receiving unit (10) that receives power transmitted from a power transmitting unit in a non-contact state; and a power received by the power receiving unit is supplied. One or a plurality of detectors (30) for detecting a generated information to generate a signal, a modulator (40) for modulating a signal generated by the detector to a carrier, and a carrier modulated by the modulator. And a transmitting unit (50) for transmitting the information outside the body to the outside of the body. [Selection diagram] Fig. 1【課題】本発明は、身体で照射した光を検知する身体検知装置に関する。【解決手段】身体に取り付けられる身体検知装置であって、送電部から送電される電力を、非接触状態で受電する受電部(10)と、前記受電部で受電した電力が供給され、身体で発生する情報を検知して信号を生成する一又は複数の検知部(30)と、前記検知部が生成した信号を搬送波に変調する変調部(40)と、前記変調部で変調された搬送波を体外に送信する送信部(50)とを備え、身体で発生した情報を体外に知らせる。【選択図】図1