Abstract: A portable human body joint electric heating pad, used to apply heat on the local sore joint of human body continuously to contribute blood circulation thereof, characterized in (1) a stainless synthetic fiber which is provided with rapid electric conduction and heat conduction capabilities and converts electric energy into thermal energy. It is also provided with Velcro® fabric fastener for the convenience of covering body parts; (2) a finger cover hole which have said stainless synthetic fiber fit the finger of the user to cover on the hand more stably; (3) an USB power supply line which connects on said carbon fiber electric conduction fabric and inserts into an USB slot, i.e., supplying the required electric energy; (4) an extension band which is a kind of elastic fabric band to stick on said stainless synthetic fiber via the Velcro® fabric at one end to achieve the goal of length extension.