The embodiment of the invention discloses a scanned data processing method, a data processing device and a relative system. The method, device and system are used for automatically clearing scanned data in scanning equipment, guaranteeing automatic and continuous data scanning of the scanning equipment and improving the intelligence of a scanning input system. The method comprises the steps that the scanned data in the scanning equipment is actively collected; whether or not collection of the scanned data is finished is judged; if collection is finished, storing is conducted on the collected scanned data, and clearing is conducted on the scanned data in the scanning equipment. The embodiment of the invention further provides a data processing device and a relative system which are used for automatically clearing the scanned data in the scanning equipment and improving the intelligence of the scanning input system.