The policy implementation is a process of transmitting public policy from ideas into realities, and a key to directly determine policy performance.The deviation of policy implementation resulting from conflicts of local government interests tends to lead to policy failure.The traditional policy theory, insisting that both governments and officials at various levels are pure representatives of public interests and natural altruists, has been challenged in current policy practices.To analyze local government's interest structure and study an institutional way to normalize local government's action of policy implementation is very important for upgrading efficiency of policy implementation and promoting social healthy development.