The utility model discloses a spring winding device, and belongs to the technical field of machining tools. The spring winding device mainly solves the problems that the prior art is low in efficiency and poor in quality in the medium and small volume production of springs. The spring winding device comprises a crank, a fixed plate and a spring core. The fixed plate is provided with a through hole and a first threaded hole. The spring core is arranged in the through hole. A fastening screw is arranged in the first threaded hole. The axis of the first threaded hole is perpendicular to that of the through hole, and the first threaded hole is communicated with the through hole. One end of the crank is connected with one end of the spring core. The spring winding device has the advantage of making a steel wire to form a spring fast, is mainly used for machining the springs of a small volume, and can be widely applied to machining.