The invention provides a full-automatic commutator bar assembly machine of a rubber sleeve commutator. The machine comprises a commutator bar part screening vibration feeder, a rubber sleeve part screening vibration feeder, a commutator bar inserting device, a rubber sleeve loading device, a rubber sleeve heating device, an indexing transfer device, a finished product clamping device and a finished product output device. In the technical scheme provided by the invention, manual operation is replaced by the work of mechanical equipment, the benefit and yield of the assembly worker post in the commutator (motor commutator) industry are met, automatic commutator assembly is realized, the working efficiency is greatly improved, the commutator insertion is simplified due to the mechanical operation, the whole manufacturing level is ensured, and the benefits of the product are increased naturally; and moreover, since the manual operation is replaced by mechanical equipment, the labor amount in enterprises is reduced, the cost investment of the enterprises is lowered, the fund is saved, and the administrative cost of the post is lowered therewith.