Operational effectiveness of attacker is considered for static state or dynamic state separately, and it’s difficult to analyze person's influence with quantity. Synthesize the single attacker’s state effectiveness and dynamic state effectiveness, and consider person’s influence factor at the same time to get an operational effectiveness model of person-attacker system. One example is introduced for explaining the using of this mathematical model. The result shows that the model eliminates shortfall of considering static state or dynamic state effectiveness only and it can provide reference for air-to-ground strike operational effectiveness.