A comprehensive historical and legal analysis of the formation and development of investment legislation in Ukraine was carried out. And for this, the legal support for investment activities in Ukraine was investigated, taking into ac-count the requirements of regional trade agreements and international communities, of which our state is a member.The relevance of applying the norms of international law to the regulation of investment relations in Ukraine for the purpose of effective integration into the world economic space, sustainable economic development of the state, and modernizationof the national economy under martial law is substantiated.The correlation between such concepts as “European Union’s law” and “World Trade Organization’s law” is clarified.