Oil-filled SBS as well as preparation method and application thereof

The invention discloses oil-filled SBS as well as a preparation method and application thereof. The oil-filled SBS comprises the following components in parts by weight: 36-41 parts of a styrene-butadiene-styrene block copolymer, 2-4 parts of zinc oxide, 1-3 parts of stearic acid, 2-4 parts of an antioxidant, 2-4 parts of tackifying resin, 2-4 parts of an accelerant, 1-2 parts of sulfur, 5-9 parts of carbon black and 35-45 parts of environment-friendly aromatic oil. The oil-filled SBS modified asphalt can be prepared by adding the prepared oil-filled SBS into matrix asphalt, the anti-fatigue performance of an existing cementing material in each temperature interval is effectively improved on the premise of ensuring the mechanical properties of the original asphalt cementing material, and the used raw materials are more environment-friendly compared with other oil-filled asphalt cementing materials; and the oil-filled SBS actively responds to the concept of environment-friendly pavements, and has industrial ut