Electronic Bill Presentment and Payment (EBPP) service is a comprehensive electronic payment mechanism via internet for customers to deal with all sorts of bills easily. This research is to study how Taiwanese postal organization, by constructing a thick consolidation data model of EBPP, integrated monthly due bills for each household to pay off all bills from their accounts. The promotion of EBPP will increase cash flows and eliminate quantity of bill mailings, which will create great influence to postal mailing and email services. Therefore, in this thesis, suggestions of EBPP promoted in postal organization are provided for reference.