More than 1 700 seismic events（which occurred from 1982 to 2005, distributed in the range of 40°W～180°E,40°S～80°N,with magnitudes in 5.0～7.0 and focal depths shallower than 100 kin） are selected from nearly 10 000 events recorded by 113 digital seismic stations in Asia, Europe and west Pacific networks. Total 9 980 accurate Rayleigh surface dispersion curves are employed for dispersion inversion, and the distribution map of Reyleigh wave group velocity in 28 periods from 8 s to 400 s for Eurasia continent and marginal seas of west Pacific are obtained. The result shows that horizontal and vertical anisotropy exist in this region.