An electrocardiography (ECG) scanner module, a multi-contact connector thereof, an ECG scanner thereof and smart clothes using the same are provided. The multi-contact connector includes a base, a fitting portion and several first conductive portions. The base is disposed on a wearable carrier having several conductive wires. The fitting portion is disposed on the base and surrounds a receiving portion. The first conductive portions are annularly disposed on an inner periphery surface of the receiving portion, and each first conductive portion connects to the corresponding conductive wire. The ECG scanner includes several second conductive portions, and an end of each second conductive portion is projected from an outer periphery surface of the ECG scanner. When the multi-contact connector connects to the ECG scanner, each second conductive portion provides a radial force for connecting to the corresponding first conductive portion.
