The invention relates to salvage devices, in particular to a high-efficiency salvage device of scallops. The invention aims to design a high-efficiency scallop salvaging device which is capable of salvaging scallops by one person, saving manpower and improving the work efficiency. The high-efficiency salvage device of scallops includes a rack, X-shaped brackets, an arc-shaped support plate, a gearmotor, a drive gear, a lifting mechanism, a salvage mechanism and other parts, wherein the X-shaped brackets are hinged to the front side and back side of the bottom of the rack, the bottoms of the X-shaped brackets are connected with the arc-shaped support plate, and the gear motor is arranged on the top of the rack; the output shaft of the gear motor is connected with the drive gear, the lifting mechanism is installed on one side of the top of the rack, and the salvage mechanism is installed in the middle of the rack; and the salvage mechanism is matched with the drive gear in a transmission mode. Expansion and contraction of the X-shaped brackets can be adjusted through the lifting mechanism, and then the salvage height of the salvage mechanism can be adjusted, so that the high-efficiency salvage device of scallops is adaptive to different beaches, and the salvage flexibility is improved.