Abstract:With the rapid development of informatization construction and the unceasingly deepening of financial system reform, how to realize the integration of informatization system about business process, fifinancial management and fifinancial accounting, has become the goal of build the new fifinancial information manegement system. Based on the current situation of fifinancial information management system of water conservancy scientifific research units, this paper analysis connotation of business and fifinance integration, puts forward the realization method and architecture of the integration of business and fifinance, discusses the key technology of the integration of business and fifinance. Under the standard specifification and safety guarantee system, which is based on the fifine fifinancial management idea, by means of intelligent process control, the project funds management as the main line, through informatization technology support, the budget, implementation and fifinal accounts and other core thread docking with the business settlement, fifinancial accounting, budgeting, budget implementation and the specifific business link organic combination, realizes the support for data sharing of business and finance integration, establishes an integrated financial reimbursement system, and provides technical support for business and fifinance integration of water conservancy institutes.