Aiming at the disadvantage of the model of efficiency real-time evaluation of artillery firepower damage, put forward to use the data envelopment analysis (DEA) method to evaluate. Research the efficiency real-time evaluation model of artillery firepower damage, and join the commanders’ partial information by the reference cone model. On the point of the projection of the ineffective DMU to the effective surface, put forward improved direction, and analyzes by the 20 times data of artillery firepower damage. The model could give the scientific, clear, and credible evaluation result, avoiding the defects of ecumenical evaluation method, and reference value for the commanders.