The invention provides a rotary shock insulation support and belongs to the field of building structure shock insulation and reduction. The rotary shock insulation support is mainly composed of a rotary body connected with the upper structure and a groove fixed in a foundation. The rotary body comprises upper anchor rods, an anchor plate, a steel column and a partial-spherical body with one corner cut off. The upper surface of the anchor plate is connected with the upper anchor rods, the lower surface of the anchor plate is connected with the upper end of the steel column, and the lower end of the steel column is connected with the partial-spherical body with one corner cut off. The groove comprises a steel spherical concave shell, lower anchor rods, a rotary limiting block and a rotary stop block, the outer portion of the spherical concave shell is connected with the lower anchor rods, the rotary limiting block and the rotary stop block are fixed in the spherical concave shell, the rotary stop block is tightly attached to the cutting face of the partial-spherical body, and the rotary limiting block is fixed in the end portion of the spherical concave shell. The rotary shock insulation support is clear in conception, explicit in force transmission and suitable for being popularized and applied in the wide earthquake fortification areas.