The article reflects the issue of resilience, the phenomenon which draws attention by world leading democracies once full-scale invasion of Ukraine had begun. Protracted war, with its hybrid component, continues to strain national and domestic public arena and weaken its resilience posture. All these underlines the major challenge, to ensure sustainable development by joined efforts in every aspects of public life. In the paper, to reach the purpose, the phenomenon resilience is interpreted due to interdisciplinary approach. The importance to develop resilience in the system of public administration in a context of personality traits the managerial staff, is underlined. The major scientific hypothesis, that resilience of public managerial staff is sufficient, and inevitable preposition in sustainable development of the whole system. The scientific novelty of the article, that on the example of applying the systematic approach, and the methodology of public administration, and the systematic methodology, as well as other scientific tools, the phenomenon resilience is treated as the system-forming factor of the system of public administration. This means, through resilience of its managerial personnel, resilience of the system of public administration is ensured. The paper’s results indicate, that State policy, on practice, must contribute to strategies on defeating the threats of informational and psychological impact on public area, introduce special training programs targeted on the managerial staff. The type of the manuscript is a review article.