Abstract: By the construction of channel integration mode based on SOA,business channel integration and key business system modification of national bank will be achieved.Through this method,basic platform that faces the future and develops lastingly will be constructed,and key business data of national bank could be managed concentratedly.It will support business innovation of bank industry and improve service quality and management capability,which could help to realize long-term strategy goals.By the analysis of the"large concentration and large frontal-end"structure features,functions and advantages of newer national bank information system,the system could be divided according to SOA method,designed for whole logic architecture and constructed based on n layer mode of J2EE.The integrated management of national bank data will be achieved successfully.