Aseismic protective support device

The invention relates to the technical field of structural engineering seismic resisting, in particular to an aseismic protective support device, comprising an upper mechanism, a lower mechanism and support posts arranged between the upper mechanism and the lower mechanism; the upper mechanism includes a top seat, a plurality of moving seats and a locking device, the moving seats are connected tothe lower surface of the top seat, the moving seats can slide and be fixed on the top seat, and the locking device is used for fixing the moving seats on the top seat; the moving seats are arranged atequal intervals; a receiving cavity to clamp one support post is formed between every two adjacent two moving seats. The moving seats form multiple receiving cavities, so that the support posts can restore to its original support state, and collapse of a building can be avoided; the moving seats of the support device herein are movable, and the size of the receiving cavities can be adjusted according to the size of the su