A touch panel module including a touch panel and an electrostatic discharge (ESD) protection circuit is provided. The touch panel includes one or more conductive electrodes and one or more dummy electrodes. The one or more conductive electrodes include at least one of one or more driving electrodes and one or more sensing electrodes. The one or more dummy electrodes are configured to fill areas between the one or more conductive electrodes or areas outside the one or more conductive electrodes. The ESD protection circuit is electrically connected to at least one dummy electrode of the one or more dummy electrodes, and configured to provide an electrostatic discharging path to the at least one dummy electrode. Furthermore, an electrostatic discharging method of the touch panel module is also provided.