The invention discloses a device and a method for lifting a wire during distribution line construction and belongs to the technical field of distribution line erection construction. The device comprises a stand column, a support rod and a wire tightening mechanism, wherein the support rod is fixedly connected with a first casing pipe; an inclined strut is arranged between the stand column and the support rod, one end of the inclined strut is fixedly connected with the support rod, and the other end is fixedly connected with a second casing pipe; a guide pulley is mounted at the free end of the support rod; a U-shaped hanging ring is fixedly connected in the middle of the stand column; a U-shaped hook is fixedly connected at the bottom end of the stand column; one end of a connecting frame of the wire tightening mechanism is fixedly connected with a hook matched with the U-shaped hanging ring; a steel wire rope of the wire tightening mechanism winds around a roller, and the free end of the steel wire rope penetrates through the guide pulley to be connected with a shackle. The device is simple in overall structure and convenient to mount, the wire is lifted in place quickly, operating conditions of workers are improved, the labor intensity of the on-pole workers is reduced, and potential safety hazards during construction are reduced.