From the perspective of strategic plan for defence and through the mathematical modeling of Non-linear programming, analysed the two basic defense and interception methods of ‘defense-defense’ and ‘defense-evaluate-defense’ with the theory of operations research. With defense strategy to the leakage rate of robot ball and robot consumption as indicators, made a comparison of the advantages and disadvantages of the two defense and interception methods in different zones, and putforward a best defense and interception method under the given conditions.