The invention relates to an electrical insulation tape and a using method thereof. The electrical insulation tape sequentially comprises an upper film layer, an insulating protection layer, a lower shrinkage layer and an adhesive layer from top to bottom, wherein the upper film layer is prepared from PVC (Polyvinyl Chloride) or modified PVC; and the lower shrinkage layer is made from EVA (Ethylene-Vinyl Acetate). The insulating protection layer has excellent insulating property, the upper film layer is made from the PVC or the modified PVC and has excellent mechanical property such as tensileproperty; the lower shrinkage layer is made from the EVA, and the EVA shrinks in hot; during use, the electrical insulation tape is wound at a needed position and then heated, a lighter can be adoptedas a fire source, and the electrical insulation tape shrinks to drive other films to shrink under the effect of the heat source, so that the electrical insulation tape is firmly wound at the needed position; the electrical insulation tape is tightly wound at the needed position under the co-action of the adhesive layer and the lower shrinkage layer; and the condition that the rubber layer ages todrop due to long-term use of the electrical insulation tape can be avoided.