The utility model discloses a winter-protecting unfreezing temperature-self-controlling electric-heating cover, comprising an external power, electrical heating elements, etc. The utility model is characterized in that the winter-protecting unfreezing temperature-self-controlling electric-heating cover is composed of a water and oil proof layer, a heat-insulating layer, an electric heating layer, internal and external protective layers, etc. The temperature-self-controlling electric-heating layer is fixed in the heating cover; a slide fastener sealing is stitched around the cover. The utility model can be made into different shapes according to the different shapes of the easy freezing positions of the transport machinery, engineering machinery and equipment. The temperature-self-controlling protective cover is composed of the transmission line connected with the electric source.