The invention relates to a hydraulic assisted salvage tool. The hydraulic assisted salvage tool mainly comprises a hydraulic cylinder, a center tube and a ball seat; the top of the center tube is sleeved with an upper connector which is connected in a sealing mode; the middle part of the center tube is provided with an annular step bulge, and the annular step bulge and the hydraulic cylinder form a hydraulic chamber for surrounding the center tube; sealing components are arranged on the upper part and the lower part of the hydraulic chamber; through holes are uniformly distributed in the periphery of the lower part of the annular step bulge of the center tube and are taken as hydraulic holes; the lower part of the hydraulic cylinder is provided with a correcting block; the center tube is fixed with the correcting block through a pressure cutting component; the bottom of the center tube is connected with the ball seat; and the lower part of the ball seat is processed with a screw thread. The upper periphery of the wiper block is uniformly provided with a plurality of axial strip-type elastic metal sheet correcting sheet, and the middle part of the correcting sheet is slightly convex. According to the tool, the center tube drives the lower tool to lift under the action of hydraulic pressure, so that a phenomenon that the instant salvaging force is too high when a non-drilling plug tool inner cylinder is salvaged is avoided, and salvage difficulty and salvage risks are reduced.