Permeable asphalt concrete and preparation method thereof

The invention provides permeable asphalt concrete and a preparation method thereof.The permeable asphalt concrete is prepared from modified asphalt, cement, coarse aggregate, fine aggregate, mineral powder, a water reducing agent and water, and the modified asphalt is formed by mixing asphalt, modified petroleum resin and an antioxidant under the high-temperature shearing effect; the modified petroleum resin is prepared by carrying out copolymerization modification on petroleum resin, an unsaturated monomer and vinyl MQ silicon resin. A base material of the water-permeable asphalt concrete is modified asphalt, the modified asphalt is formed by mixing asphalt, modified petroleum resin and an antioxidant under the high-temperature shearing action, the modified petroleum resin is obtained by taking petroleum resin, unsaturated monomers and vinyl MQ silicon resin as raw materials and carrying out solution polymerization through a free radical initiator, and the modified petroleum resin is obtained by taking the u