In order to improve the scientificity and accuracy of the evaluation system of food support ability, the evaluation index system of food support ability for local guide brigade was established by using analytic hierarchy process (AHP). Through field research, expert inquiry and access to information, using the analytic hierarchy process to construct the structure model and divide it into target layer, criterion layer and index layer, construct the judgment matrix, determine the index weight and carry out consistency test. The analysis results show that the overall weight of personnel training index is higher, while the overall weight of canteen construction index is lower, which is in line with the actual evaluation of food support capability of local guide brigade, and the fuzzy evaluation in the past is effectively transformed into quantitative analysis, which can provide decision-making basis for the army to formulate the evaluation criteria of food support capability of local guide brigade.