The invention discloses an automatic winding device. The automatic winding device comprises a power component, a winding shaft, a rotary disc and winding columns. The rotary disc is provided with slotted through holes matched with the winding columns. The winding columns penetrate the slotted through holes and can slide along the same. The winding columns are fixed on the slotted through holes through screws. A wire clamping seat is arranged on one lateral side of the rotary disc and is positioned between the first winding column and the second winding column. The automatic winding device is simple in structure, automatic in applied machinery and high in winding speed, labor intensity is reduced, product quality is guaranteed, production efficiency and product acceptability are greatly improved, enterprise competitiveness is enhanced, and wide popularization is facilitated.