A Lanchester model is proposed to describe the modern electronic fire attack. First of all, a model of incomplete information antagonism is proposed based on second linear law and the square law of Lanchester. Then, the model is extended to the cooperative confrontation model by bring in the factor of fire distribution. And then, based on the analysis of the effect of electronic attack on firepower, the damage probability and information factor are discussed, and the multivariate Lanchester model is given. Finally, the rationality of the proposed model is verified by simulation.