The invention provides a fiber processing system. The technical problems are solved that a large quantity of leftover materials can be generated and cannot be recycled in the prior art so that resource waste, environmental damage and low practicability can be caused. The system comprises a rack, a cylindrical stirring barrel is fixed onto the rack, and electric heating pipes are arranged in the stirring barrel; a feeding device, a stirring device, a tearing device, a rubbing device and an opening device are arranged on the rack. The feeding device can convey materials to the stirring barrel, the stirring device can stir the materials in the stirring barrel, and the tearing device can tear the materials in the stirring barrel; the rubbing device can rub the materials in the stirring barrel,and the opening device can open the materials which are output in the stirring barrel. The fiber processing system has the advantage of high practicability.