This paper aims to analyse the processes related to security management in Poland in the case of a crisis. It is crucial to indicate the legal and organisational basis, including specific practical actions, particularly in the context of making general indications for Ukraine. Poland and Ukraine are neighbouring states with large areas and populations. However, their organisational systems, as well as internal and external conditions, are different. The paper focuses on the issue of crisis management at the level of public administration processes and tasks. The relevance of this issue is also based on the cross-border nature of opportunities and challenges in this respect.