This paper investigates the acquisition of RFID technology for Wal-Mart's suppliers by the method of case study. Through the collection of related literature and data of case companies, the channel powers between Wal-Mart and its suppliers including HP, P&G Gillette and Kraft are respectively analyzed; in addition, these four suppliers' acquisition willingness for RFID technology are also studied. The relationship between channel power and acquisition willingness for RFID technology is consequently concluded. Based on the research results, it can be found that the lower the overall influences of channel powers, the higher the supplier's willingness to acquire RFID technology.