As economic development between China and Taiwan, most traditional and labor intensive industries have had transferred to China extensively. However, the quality control level of their suppliers is more uneven than ever, which causes extra costs from rework and replacement. What is worse, someone's fault in overheat of battery used in notebook computer has damaged its customers' reputation seriously. Hence, electronic industries ought to choose suppliers for better competitiveness when faced with tremendous change. The purpose of this research is to help electronic industries construct a performance evaluation of connector suppliers. In the beginning, it collects related papers concerning connectors and performance as basis; then, surveys status quo of connector industries in Taiwan. Making use of five perspectives quoted from balanced scorecard (BSC), except for financial capability, customer service capability, process capability, learning and growth capability, the research modifies the perspectives into five by adopting flexibility response capability. Also, it searches for proper and positive performance evaluation method for connector purchasers by means of expertise survey and weighted indicators computed by analytic hierarchy process (AHP). The result of this research can offer not only performance evaluation for electronic companies to purchase connectors, but also infrastructure for further study of suppliers' competitive strategy.