Guss asphalt composition using modified asphalt

The present invention is 56-95% by weight of straight asphalt; 1-10% by weight elastomer; 1-10% by weight of thermoplastic resin; 1-10% by weight of petroleum PITCH; Amide wax 1-10% by weight; By providing a goose asphalt composition using a modified asphalt characterized in that it comprises; 0.1-5% by weight of a heat stabilizer, by mixing natural asphalt, it is possible to maintain a uniform blending ratio, odor and smoke at high temperatures Emissions can be reduced and efficient process management can be achieved, while road pavement durability, thermal stability, plastic deformation resistance, weather resistance and wear resistance can be improved.