Abstract: The dynamic formation of policy termination system matches well the dissipative structure theory in that as a system open to and far from the equilibrium state， its internal factors could lead to self-organization through the mutation process via the nonlinear interactions， and an orderly dissipative structure could be formed accompanied by the stochastic fluctuation of these factors. Based on the dissipative structure theory， the dynamic mechanism of policy termination system was explored and the model for its dynamic realization was constructed. Furthermore， several approaches were found that to provide consistent guarantee for the dynamic output of policy termination system including transferring from recessive conflict to dominant conflict， narrowing the scope and weakening the intensity of interest conflicts between policy termination coalition and anti-policy termination coalition， strengthening the termination-oriented learning of coalition members， and making use of the public opinions and policy evaluation rationales.

Key words: policy termination, system, dynamics, dissipative structure