A portable thermo-therapeutic apparatus comprises a soft main body, at least one conductive heating body and a power supply device. The soft main body covers the outside the conductive heating body. The conductive heating body is formed by the combination of a heat-conducting polymer semiconductor material and a far-infrared powder material, and is internally embedded with at least two electrodes that are utilized for receiving and discharging an electrical power outputted from the power supply device. Accordingly, the conductive heating body makes use of low voltage direct current to generate thermal energy for being directly transferred to the far-infrared powder material, so as to not only promote the energy-using efficiency and energy-saving effect but also stop the conductive heating body from producing electromagnetic wave in the heating process thereby avoiding negative influence to users health.
