Abstract: An anti-seismic bearing which comprises a plurality of rigid plates and viscoelastic flexible plates laminated alternately, with at least one of the flexible plates being made of a vulcanizate of a high-loss rubber compound composed of 100 parts by weight of rubber and 3 to 40 parts by weight of phenolic resin having a softening point or melting point of 150.degree. C. or below, the vulcanizate having the properties specified below.(i) The hysteresis ratio at 100% tensile deformation at 25.degree. C. is 0.2 to 0.7.(ii) the ratio E.sub.(-10) /E.sub.(30) is 1.0 to 2.5, where E.sub.(-10) is a storage modulus at -10.degree. C. and E.sub.(30) is a storage modulus at 30.degree. C., both dynamically measured at 5 Hz and 0.01% strain.