关键词: 无标度网络, 选择性攻击, 抗攻击能力, 熵优化, 关键节点分裂

Abstract: Networks resilience is vital for the survival of networks，and that the scale-free networks are fragile when confronted with selectivity attacks.After a deep research on scale-free networks’ resilience，this paper proposes the methods of network structure entropy optimization and key nodes split，which optimize the network topology，and improve the network generation algorithm with the precondition that minimize the complexity and cost as much as possible.Finally，the simulations indicate that the two methods can enhance the robustness and resilience of networks effectively，and provide guidance for topology designs.

Key words: scale-free network, selectivity attack, resilience, entropy optimization, key nodes split