A biosignal measurement device includes an electrode and a signal
processing member. The electrode includes an insulation sheet having a
hole, a device contact portion provided on the top surface of the
insulation sheet and a body contact portion provided on the bottom
surface of the insulation sheet, the device contact portion and the body
contact portion electrically connected to each other via the hole. The
signal processing member includes an externally exposed terminal to make
surface contact with the device contact portion, an analog signal
processing unit, an A/D signal converter and a digital signal processing
unit. Also, the device contact portion and the body contact portion are
formed of a material which is both conductive and adhesive. Accordingly,
the signal processing member may be directly attached. Noise may be
reduced. Also, a biosignal may be accurately measured.