The present invention provides a multi-channel bio-med electric signals capturing device for using a sound signal to capture multi-channel bioelectric signals, so as to allow the user to easily record bioelectric signals by a personal computer, mp3 or tape recorder. The multi-channel bioelectric signals capturing device includes: a detection channel unit, a control unit, an output unit and a computer device. The detection channel unit is provided to detect bioelectric signals produced from human body and amplify the same. The control unit is provided to capture the amplified bio-med electric signals based on a frequency conforming to a computer acceptable audient signal. The output unit transmits the captured amplified bio-med electric signals to a microphone of the computer device, whereby a recording program built in the computer device records the input audient signal as a voice file. Accordingly, the user is able to monitor the bio-med electric signals by easily and simply using a computer device.
