The utility model relates to the technical field of automation equipment, in particular to a translation lifting rotary assembly for an insulator dismounting mechanism, which comprises a translation unit, a lifting unit and a rotary unit, and the translation unit comprises a translation base plate, a sliding seat and a translation driving mechanism; the lifting unit comprises a lifting base plate,a fixing base, a direct-current gear motor, a second ball screw and a second screw nut. The rotation unit comprises a rotation base plate, a rotation driving motor, a rotation driving motor mountingbase, a rotation base, a rotation shaft assembly, a rotation pull rod and a rotation connecting block. According to the technical scheme of the utility model, the device is installed on an insulator disassembling and assembling mechanism. Translation, lifting and rotation of the disassembly and assembly mechanism are achieved through the translation unit, the lifting unit and the rotation unit, sothat the insulator disassembly and assembly efficiency is improved, the detection unit is arranged, translation, lifting and rotation strokes can be detected and controlled by external control equipment, and the automation degree is improved.