Same-frame analysis of optical equipment is the key target of the measure & control scheme's validating rationality in the shooting test of antiaircraft gun system, in order to solve the problem of the larger error of the present same-frame analysis method, a method of same-frame analysis based on simulation deduction is put forward in this paper. Optical equipment imaging system model is built based on Virtools platform, the principle and the implementation of same-frame analysis is analyzed. In the process of the simulation deduction, the same-frame analysis result approaches the true experimental situation to a great extent. It is because that the target flight path is established according to the real testing demand, the trajectory orbit model of the antiaircraft gun system is set up according to the firing table, and the frequency of same-frame number accumulating is the same with the equipment recording frame rate. The method proposed in this paper improves the precision of same-frame analysis and offers the basis for the scheme designer to validating the rationality of measure & control scheme.