A
body composition detection method and a device (100) are provided. The device (100) includes a housing (2), a support layer, and at least one
detector (101, 102, 103, or 104). The
detector (101, 102, 103, or 104) includes an impedance measurement
assembly and a dehumidification
assembly. The support layer includes a processor. Both the impedance measurement
assembly and the dehumidification assembly are electrically connected to the processor. The impedance measurement assembly, the dehumidification assembly, and the processor are all disposed inside the housing (2). The impedance measurement assembly is embedded on an upper surface of the housing (2). An upper surface of the impedance measurement assembly is flush with or higher than the upper surface of the housing (2). The upper surface of the impedance measurement assembly is in contact with a
human body during measurement. Because
moisture on a
body surface greatly affects body impedance measurement, the dehumidification assembly removes the
moisture on the
body surface before body impedance is measured, and measurement is performed after the
body surface is dried. This can improve accuracy of the body impedance measurement, and further can improve accuracy for detecting a
body composition by using the body impedance.