Conventional methods for detecting the signals generated by the human motion of walking cannot easily sense such signals. Further, these conventional methods have not been applied to the non-contact measurement of human walking. In this study, we develop an effective non-contact technique for the detection of human walking. We propose a method for detecting human motion by measuring the current generated by it due to electrostatic induction. The cadence components appeared in the wave form of the electrostatic induction current. This method effectively explains the behavior of the wave form of the electrostatic induced current flowing through a given measurement electrode.