Aiming at the fact that the dependence of modern high-tech warfare on the command and control system is increasing, and that the command and different control system itself characteristics and the different mission requirements make the evaluation effectiveness unstable, a dynamic evaluation model with the matching degree of system space and mission as the target is presented, in combination with the Air-based command control system function, characteristic and application research, on the basis of command control system flight-test data illustrating the broad applicability and real-time effectiveness of the warfare with the Lanchester Equation. By using this method, the operation and the mission of the system are combined together to calculate the relation between the trajectory of the system property space and the mission -required trajectory according to the numeric area of the system in certain circumstance, and finally the whole measurement of the Air-based command control system is given. The method makes up the evaluation difference caused by the unreasonable choice of mission property. The simulation results verify the validity and rationality of the method.