Based on the introduction of the open source DSpace software, many useful steps are introduced to accord with the really application requirement of Internal correlative institution and to adapt for the Internal user’s usage habit. The steps includes several system files of DSpace about language be Chinese localized, the system interfaces be adjusted, the system functions be optimized, and the mail server’s function be improved. All the steps are carried out on Xiamen University Institutional Repository which has been built with DSpace.