A smart garment having: a garment； at least one node device disposed on the garment； and a connecting device disposed on the garment and having a connecting port electrically coupled with the at least one node device and a connection interface for coupling with a wearable device or a mobile device, such that the wearable device or the mobile device can utilize the connection interface to obtain sensed information of the at least one node device, or drive the at least one node device to change a physical quantity applied on the garment.
