The utility model discloses a high-surface-pressure energy dissipation and seismic isolation device, and belongs to the technical field of seismic isolation of constructional engineering structures. The shock isolation device comprises an upper connecting plate, a spring support, a spherical sliding block, a lower sliding groove, a lower connecting plate and a tensile and shear-resistant connecting piece. A tensile shear connector is arranged on one side of the upper connecting plate, and a spherical sliding block is arranged on the other side. A lower sliding groove is determined according tothe movement energy consumption radius of a spherical sliding block, a plurality of spring supports are arranged, the spring supports are arranged on a lower connecting plate in a scattered mode, theupper portions of the spring supports are fixed to an upper connecting plate, the lower portions of the spring supports are fixed to a lower connecting plate, and a tensile and shear-resistant connecting piece is arranged on the lower connecting plate. The high-surface-pressure energy dissipation and seismic isolation device has the advantages of being high in bearing capacity, good in seismic isolation and tensile energy dissipation characteristics, economical, practical, green and environmentally friendly.