In order to improve operational efficiency of armored force reconnaissance system, introduces the constitution and information flow of reconnaissance system, and then analyze the foundation of index system and the standardization of final stage of the reconnaissance system, used the method of group single criterion AHP to calculate the weight of all indexes, and adopts the amalgamation way which is in common use in class integrated calculates, at last, collects the value of all indexes calculated to get the value of total evaluation. The result indicates that the operational efficiency of armored force can be improved efficiently under the support of space information, which is accord with the expectation of the evaluation.