Aiming at the risks and challenges brought by UAV, the evaluation index system of mission satisfaction of equipment system of “low, slow and small” target prevention and control unit is constructed. Based on the analysis of the factors affecting the evaluation, the analytic hierarchy process (AHP) and the fuzzy comprehensive evaluation (FCE) are combined to evaluate the task satisfaction. And provide ideas for improvement and optimization. The evaluation results show that the system can effectively complete the prevention and control tasks for the “low, slow and small” targets, and effectively solve the impact of the uncertain factors on the evaluation of the mission satisfaction evaluation of the equipment system of the prevention and control unit.