Abstract: Network confrontation deduction is an important part of task planning and evaluation decision in network confrontation. In view of the characteristics of wide dimension, multi-objective and short burst of network confrontation, the traditional deduction system can not complete the requirements of network confrontation deduction. In order to solve this problem, this paper designs a network confrontation deduction system based  on the offensive and defensive action chain. The system consists of database, visualization platform, attack and defense chain structure, deduction control engine, model construction, application layer and other subsystems. The modules of each subsystem cooperate with each other to drive the overall network against the deduction system in accordance with the deduction plot, and form a chain action plan or structure with offensive and defensive game. This paper calls it the offensive and defensive action chain. The proposal of the offensive and defensive action chain enables the deductive system to better perform the scheduling and decision making during the deduction process, and also provides a reference research direction for the network attack and defense confrontation.

Key words:  network confrontation, deduction system, offensive and defensive action chain