Abstract:International buyers are often faced with supplier selection and relationship management issues. Based on fuzzy mathematics method and quality function deployment (QFD), this study transforms customer linguistic requirements into the criteria of supplier selection. The ordered 26 criteria combined with the dynamic timeline is the systematic and dynamic criteria for supplier selection. Through the analysis of the interaction process, the modes of relationship in cooperation between international buyers and suppliers are categorized into three types including growth, continuation, and recession. International buyers to select suppliers and enhance the level of supplier relationship management.