In order to accurately evaluate the effectiveness of the cluster combat capability of the unmanned underwater vehicle(UUV),the effectiveness evaluation index system is established,and the combat simulation results are used as the data source of the effectiveness evaluation to obtain the evaluation results. By instantiating the UUV cluster combat simulation under a specific scenario,the combat effectiveness evaluation and combat simulation process are introduced,and the effectiveness evaluation results of the UUV cluster combat that meet the theoretical expectations are obtained,which has proven the effectiveness of this method and laid the foundation for the system combat effectiveness evaluation with the participation of multiple equipment.