Self-adhesive polymer modified asphalt waterproofing membrane is a kind of self-adhesive waterproofing membrane made of polyester felt as the tire base, coated with elastomer (SBS) modified asphalt on both sides, covered with polyethylene film, fine sand or mineral granules and other isolation materials on the upper surface, coated with self-adhesive rubber asphalt on the lower surface, and attached with peelable silicone-coated separator film or silicon-coated wrinkle separator paper as the isolation material. The product is suitable for waterproofing projects of Class I and II buildings.