A surface temperature sensor, including: an NTC or PTC thermistor; and a flexible printed circuit (FPC) or flexible flat cable (FFC) or conducting wire including at least two rows of single calendaring copper wires. The NTC or PTC thermistor and the FPC or FFC or conducting wire are welded together to form welding points. The thermistor and the welding points are packed inside a thin film by hot pressing. The thin film is a polyimide, a polyethylene terephthalate (PET) plastic, an aramid fiber, an aromatic polyamide, a polyether ether ketone, or a silicone rubber.