The utility model discloses a deviation correcting device is right to small -size structures, right the support of rectifying including a plurality of groups, every group rights the support of rectifying and connects gradually and enclose into a week with the basis, every group rights the support of rectifying and includes fixed bolster, swing joint slide, rights flitch, regulation cock and base, the top of fixed bolster is equipped with the swing joint slide, but relative slip between swing joint slide and the fixed bolster, and the swing joint slide is connected with the basis through flexible rope, one side of fixed bolster is provided with the base, and the base is connected with the one end of regulation cock, and the other end of regulation cock is connected with one side facial features of rightting the flitch, rights the another side of flitch and closely laminates with superstructure, the utility model discloses deviation correcting device is right to small -size structures simple structure, bolted connection is all adopted in easily operation, and this attachment of apparatus, makes things convenient for the dismouting, and repeatedly usable practices thrift the environmental protection, after this device targets the jacking of foundation in place, then carry out basis bottom and handle, can demolish this device after reaching the requirement.