The invention relates to the technical field of road engineering, in particular to an environment-friendly high-elastic asphalt mixture used as a stress absorbing layer. In the prior art, asphalt cement has poor elasticity and low-temperature ductility, so a concentrated stress effect generated under the action of heavy load absorption is not obvious. The technical scheme of the environment-friendly high-elastic asphalt mixture is as follows: the high-elastic asphalt mixture used as the material of the stress absorbing layer comprises No.70 matrix asphalt, waste tyre rubber powder, coal ash, SBR (styrene butadiene rubber) modifier and mineral aggregate, wherein the rubber powder accounts for 15-25% of the total weight of the No.70 matrix asphalt; the coal ash accounts for 8-12% of the total weight of the No.70 matrix asphalt; the SBR modifier accounts for 4-5% of the total weight of the No.70 matrix asphalt; and the total weight of the mineral aggregate is 10-15 times of that of the No.70 matrix asphalt. The elasticity and the low-temperature ductility of the asphalt cement are greatly improved, and the low-temperature performance, fatigue property and other technical indexes of the mixture are remarkably improved.