UAV collaborative operation is characterized by the advantages of high mission completion and low operational consumption, and is one of the main trends in future operations. Effectiveness assessment of UAV cooperative operations can be effectively used to analyze the performance of the system and has a certain of positive significance for improving the combat capability of the system. In view of making the formation of unmanned cooperative combat system by using DoDAF (Department of Defense Architectural Framework), the relationships between the combat activities and the capabilities are analyzed, a coordinated combat capability index system is established. different types of indexes Processing are differentiated respectively by using scale scaling method, probability calculation method, and aggregation method to deal with dimensional indicators, quantitative probability indicators and qualitative probability indicators. ADC (availability dependability capability) model is utilized for expanding system capability vectors, taking into account the comprehensive indicators, such as survivability and electronic confrontation capabilities, breaking through the limitations of single indicators. Finally, taking the UAV collaboration under the typical mission of ground combat as a scenario, by the method proposed in this paper, the effectiveness of different combat options is evaluated and calculated. The calculation results verify the effectiveness of the method. And the method is valid.