Systematic updating of the civil legislation of Ukraine and modernisation of the civil legislation of the Republic of Kazakhstan are time-consuming tasks as evidenced by the analysis of changes that were made to the civil codes of Ukraine and the Republic of Kazakhstan and their law enforcement practice. Work on updating civil legislation requires an assessment of the current state and prospects of socio-economic development of Ukrainian society and the state, in particular the development of such an important component as the national legal system, which is presented in the concept of updating the Civil Code of Ukraine. It is crucial that the main areas of the concept orient the development of civil law in Ukraine, considering the current experience of recodification of civil codes of other states within the continental legal family. Considering that civil legislation is also being modernised in the Republic of Kazakhstan, the purpose of this study is to compare the main ideas of recodification of the Civil Code of Ukraine and modernisation of the Civil Code of the Republic of Kazakhstan to establish a systematic approach and a unified concept for the development of civil law and form a clear guideline for the improvement of civil legislation. The study analyses the areas of updating the civil legislation of Ukraine and the Republic of Kazakhstan based on both general (historical, comparative, system analysis) and special (specific-sociological, formal legal, legal-technical, etc.) methods. One of the most reasonable ways to ensure continuity of legal regulation of civil relations and ensure the modernisation of the legal basis for the development of the sphere of social and legal relations in the long term is the approach that should preserve all the achievements of existing civil codes, considering modern European approaches and the specific features of civil and business turnover