Interception of UAV cluster is becoming an important task for ship anti air defense.Shipborne laser weapon system is considered as an effective means to intercept UAV targets.In this paper,the attack mode of UVA cluster is analyzed,and the target flow mode of UAV swarms is established.Based on the damage mechanism of target,the damage time model of laser weapon on UAV target is given.On this basis,the queuing model of laser weapon intercepting UAV cluster is established and different target attack modes,intensities,and different laser weapons capabilities are analyzed in different situations,with the quantitative impact of laser weapon interception on UAV cluster efficiency,providing support for the operational applications of laser weapons.