A new anti-missile campaign scheme evaluation method based on phase weight and probability potential is proposed. Firstly, on the basis of analyzing existing evaluation methods, the scheme phase dynamic evaluation idea is brought up and the phase weight measurement formula is designed. Moreover, the campaign scheme evaluation index system and index measurements are constructed; and combined with relative certain probability potential, relative optimism probability potential, relative pessimism probability potential and generalized potential, the detail steps of new method are designed. Finally, the performance of the new method and its detail steps are verified and analyzed, the result shows that the new method not only can solve the anti-missile campaign scheme evaluation problem, but also can help commander to make an optimization decision with preference information.