A serpentine belt braiding machine is a braiding machine and comprises an upper disc, a lower disc, a frame, a main motor, a spindle drive device, a winding device, a serpentine transmission device and a support pillar; the upper disc and the lower disc are connected in succession on the frame, the spindle drive device, the main motor and the support pillar are connected to the upper disc, the winding device and the serpentine transmission device are connected to the support pillar, and the winding device is located above the serpentine transmission device; the serpentine transmission device comprises a roller moving mechanism and a drive mechanism; the roller mechanism and the drive mechanism are in rolling connection through their cams and rollers. The problem that a serpentine form made by the prior art is non-uniform in variation pitch, unstable in diameter deviation and low in yield is solved; this machine has the advantages that manual operation is replaced, serpentine pitch is uniform, time and labor are saved, product quality and yield are increased and materials are saved.