The invention discloses an insulation double-sided tape and a preparation process thereof. The insulation double-sided tape comprises a first release film, a first double-sided
adhesive film, an insulation film, a second double-sided
adhesive film and a second release film which are sequentially attached to each other, one end of each of the first release film, the first double-sided
adhesive film, the insulation film, the second double-sided adhesive film and the second release film is aligned, the first double-sided adhesive film, the insulation film, the second double-sided adhesive film are equal in length, the other end of the first release film is 5-10mm longer than the first double-sided adhesive film, and the second release film is 20-50mm longer than the second double-sided adhesive film. The insulation double-sided tape is compounded to be an integrated structure through
mechanical equipment, after being completed, the insulation double-sided tape can be attached to the inner side of an LED (
light emitting diode) lamp tube merely by one worker for usage, so that the manpower is saved, the compound cycle is shortened, the production efficiency is improved, the preparation process is completed through the
mechanical equipment, the compound is fast, the accuracy is high, the product reject ratio is low, and the resource is saved.