To accelerate the process of establishing Xi’an Regional Finical Center，emphasizing on building the capability in Xi’an Finance & Business District which is a regional base of financial headquarters for its financial service outsourcing turn up the importance，that is the main idea of the paper is prove to show the significance of financial service outsourcing，analyze the content and trends of financial service outsourcing and summarize the advantages of develop industry of financial service outsourcing in Xi’an.Finally conclude the solution that building financial service outsourcing base in Xi’an Finance & Business District further to steps.