In order to reveal the evolution mechanism of the taking off and landing safety risk of amphibious seaplane, and effectively prevent the safety risk of seaplane in taking off and landing stage, the right-oriented network topology structure of the amphibious seaplane take-off and landing safety risk evolution was constructed based on the action path between risk factors, and regression analysis was used to verify the scale-free characteristics of the complex network. The node degree centrality, betweenness centrality, closeness centrality and comprehensive value were applied to identify the key risk factors from different perspectives. Matlab was used to analyze the functional robustness and structural robustness of the network under random and deliberate attacks. The robustness effects of degree attack, betweenness centrality attack, closeness centrality attack, comprehensive attack were contrasted, the key risk factors were identified and the chain-breaking control strategy was proposed. The results show that the safety risk network of amphibious seaplane take-off and landing is a scale-free network; the robustness of the network under random attack is stronger than deliberate attack, and the structural robustness of the degree attack is the worst, and the performance robustness of the comprehensive value attack is the worst; nodes with higher comprehensive values are the key risk factors of the network, and priority disposal of key nodes can help prevent taking off and landing accidents.
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