The statistical & evaluation method in traditional combat simulation has betrayed its deficiencies in many aspects: data collecting, importing data to database, displaying statistical data, etc. The deficiencies have obstructed the further development of statistical & evaluation method in the combat simulation. Under the standard of extensible modeling & simulation framework (XMSF), web technology has been applied to distributed simulation more and more. The research on the Web-based statistical & evaluation method has become the new tide in simulations. This paper introduces the deficiencies of traditional statistical & evaluation method first. Given the deficiencies, the Web-based real-time statistical method is put forward. Then the work principle and the key techniques which include design of statistical data agent (SDA), design of real-time statistical calculation module and Web-based statistical data publication are illustrated in detail. Finally, it gives an application of the Web-based real-time statistical method and summarizes the characters and the future development of the new method.