Given the global nature of cyber threats, assurance of a cyber security policy is very important not only at the local organisation level, but also at national and international level. Currently, cyber security as such is not suitably regulated internationally; therefore, the role of national cyber security strategies has become particularly significant. Lithuania is among the leaders in the EU and globally in the development of the optical fibre network. FTTP coverage has already reached 95%, the highest in the EU. Regardless of that, the cyber security programme effective in Lithuania does not provide conditions to ensure an appropriate level of cyber security and may not be regarded as a high-level contemporary strategic document in the area of cyber security. This article presents a study the main outcome of which are guidelines for a contemporary model of the Lithuanian national cyber security strategy. Based on comparative and historical studies as well as expert interviews conducted by authors and on the best practice of other countries, the article presents the elements of a model of the Lithuanian national cyber security strategy as well as guidelines on the content of these elements of the model. The article also reveals which elements of the model of the national cyber security strategy should most of all reflect the national situation and which elements may be unified and possibly also adapted in the cyber security strategies of other countries.