By adopting such modern control methods as PLC, inverter and touch screen, mechanical transmission system and pneumatic system shall be integrated and process actions shall be controlled to realize automatic and continuous operations from flax fiber to sliver, shorten original process route and enjoy such features as high electromechanical integration, convenient adjustment for hackle/slivering parameters, high efficiency and high quality, worker-saving and time-saving (5-7 person is reduced each shift), low labor intensity and low maintenance and management cost, which is the ideal new best fiber carding process device to replace hackling and sliver process. Furthermore, internationally advanced technology is adopted for the equipment.