Abstract: An electric conductive sensing device includes a front sheet of a sensing pad having several openings. A sensing electrode is a conductive ink electrode aligned with and exposed through each opening. Several first terminals are formed on an insert portion of the sensing pad and are connected to sensing electrodes. Each opening covered by a conductive gel is electrically connected to the corresponding sensing electrode. The insert portion is integrated in a connector. The electric conductive sensing device can be used as electrode patches of ECG devices or electric stimulators. In use, the connector is plugged into the devices to transmit tiny electrical currents to the ECG device from the human skin surface, or to transmit electrical currents generated from the stimulator to the human. The sensing electrodes are formed by conductive ink printing thereby simplifying the manufacturing process and lowering the manufacturing cost compared to conventional soldered structures.