A bioelectrical impedance measurement method is provided. A power signal and a frequency regulation for driving a measuring unit to perform bioelectrical impedance measurement are provided from a first sound channel output terminal and a second sound channel output terminal according to a measuring mode set by a host device, and a signal measured and mixed is received by a microphone input terminal of the host device, and a bioelectrical impedance measurement result is analyzed and displayed by the host device.一種生物阻抗量測方法。藉由主機裝置設定之量測模式經由第一聲道輸出端與第二聲道輸出端來提供驅動量測單元進行檢測所需之電源訊號與頻率調控訊號,並藉由主機裝置之麥克風輸入端接收量測後並經混音過的訊號,再經由主機裝置解析並顯示結果。S302~S314‧‧‧生物阻抗量測方法的步驟
