The invention relates to the technical field of metal plating equipment, and discloses a conveniently controlled metal plating fixing device which comprises a shell, wherein a soft magnetic block is slidably connected in the shell, a sliding block is movably connected to the top end of the soft magnetic block, a first connecting rod is fixedly connected in the sliding block, a first gear is meshedwith the outer side of the first connecting rod, a magnetic pole is arranged in the middle of the first gear, a rack is meshed with the outer side of the first gear, and a first connecting shaft is fixedly connected with the middle of the rack. According to the conveniently controlled metal plating fixing device, through connection of the shell and the rack, the problem that an existing metal plating device is not provided with a high-efficiency fixing device is solved, a workpiece needing metal plating is fixed effectively, and the metal plating fixing device is applicable to different specifications and sizes, so that metal workpieces with different sizes can be fixed when the metal parts are placed in an electrolytic tank, the use is convenient, and therefore, the conveniently controlled metal plating fixing device is convenient to use, high in flexibility and applicability.