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The purpose of this research is to provide a methodology that uses RFID technology to solve problem of quality traceability of spun yarn. A special RFID reader was designed to run on the guide rail. The ID of every bobbin could be readout and transferred to the computer. In the management system, the IDs will be tied together with the location of spindles. It is convenient to find the spindle when there is some problems with a bobbin. It gives a new strategy to improve the quality of spun yarn.