Difficulties in evaluating effectiveness and selecting an optimum scheme for radar netting arise as a result of the different goals involved and the large number of attributes considered. Our approach was based upon a fuzzy extension of the AHP (analytic hierarchy process), which was applied to the effectiveness evaluation for radar netting. The evaluation index hierarchy for radar netting’s effectiveness evaluation was presented, and some definitions of the interval judgment matrix were introduced. The methods of calculating weight-vector or comprehensive evaluation value of interval judgmentmatrix were summarized generally. Utilizing the probability distribution method, the ordering of chief combination weights was investigated for the lowest level according to the highest level. Fuzzy AHP was applied based on interval judgment matrix,and the fuzzy judgment model was set up for radar netting’s effectiveness evaluation. The practical example shows practicability of the method and the results can help commanders improve accurate and scientific decision in deploying radar netting.