The origin and the study current state of the toroidal planet worm drive is discussed.The future research direction of the toroidal planet worm drive for better accuracy aiming at the high noise which exists in working process is put forward.Intensive study on dynamics characteristic

profile modification theory based on elastic deformation and errors

numerical control machining and so on of the toroidal planet worm drive are made from complex surface modeling

mesh theory

elasticity

dynamics theory and manufacture technique and etc.A new set of integrated design theory and manufacture technique will be explored in order to rationalize the design and manufacture procedure of the toroidal drive.