GTA and SBS particles were used as combined modifiers to prepare dedicated modified asphalt for rollable asphalt pavement(Rollpave). The dedicated modifier asphalt with the biggest combined modifier continuous phase area was selected to conduct three performance indicators tests，Brookfield viscosity test, DSR(dynamic shear rheometer) test and BBR(bending beam rheometer) test to evaluate its road performance，and compare with the matrix asphalt and SBS modified asphalt. The results show that：the softening point and ductility(5℃) of the dedicated modified asphalt are much higher than those of the matrix asphalt and SBS modified asphalt，but the penetration(25℃) of the dedicated modified asphalt is close to that of the matrix asphalt; the high and low temperature grades of the dedicated modified asphalt are significantly improved compared with the matrix asphalt and SBS modified asphalt; the thermal sensitivity of the dedicated modified asphalt is better than that of the matrix asphalt and SBS modified asphalt at 1580℃. It is a new road repair ideas provided by Rollpave.