PET micro-prismatic reflective tape is a reflective material made based on the principle of cube corner pyramid refraction and total reflection. The surface finish of each cube-corner cone of the PET micro-prismatic reflective tape exceeds 5nm, the angle error is less than 0.01 arc second, and there are 10,000 micro prisms distributed per square centimeter. The PET micro-prismatic reflective tape is a reflective product that is completely realized by ultra-precision craftsmanship and craftsmanship.