When C4KISR is attacked on the battlefield,how to quickly recover from its failures and reduce performance loss is the key to the robustness and resilience of the system.On the basis of analyzing structural and functional characteristics of C4KISR,a double-layer interdependent network model of C4KISR is constructed and its failure mechanism is discussed.Then,a dynamic failure-to-recovery model of C4KISR is established,and the corresponding resilience strategy is proposed.Finally,a certain C4KISR is set as an example for simulation,and the influence of parameters on the networks performance and the systems resilience is discussed.Simulation results have proved the rationality and effectiveness of the proposed model. This research provides a basis for the design of resilience strategies,and provides useful reference for the enhancement of battlefield survivability of C4KISR and its capability to support systematic combat.