Supply chain management plays an important role in contemporary enterprises and its operations include materials procurement, manufacturing, logistics, sales and service. Good supply chain management relies on information technologies that facilitate the sharing of process and production-related information. Hence, information technology plays a key role in supply chain management. In order for information sharing to be effective, standardizationand integration are important. The purpose of this study is to examine how standardization and integration of information technologies in a supply chain may affect its performance. Four dimensions of information technology standardization and integration are defined: business process, data, technology infrastructure, and application system. We also include supply chain capability as a mediating variable. This study used questionnaire to collection date, and used SmartPLS and SPSS to analyze data. The results indicate that: (1) IT standardization has significant influences on supply chain capability, but IT integration does not; (2) supply chain capability has significant positive impacts on supply chain performance; and (3) IT standardization and IT integration do not have direct influences on supply chain performance.