Problem setting. The article is focused on determining legal principles of venture investment into startups as innovative product. The relevance of the topic is due to the fact that the main obstacle for the development of startups in Ukraine is the lack of permanent and systematic investments, the development of venture entrepreneurship, scientific research in the area of venture investment. analysis of recent researches and publications. Economists, in particular I. V. Lytvyn and Y. V. Bulak, drew attention to the state of venture capital entrepreneurship under martial law. The problem of venture capital investment was studied in detail by Y. M. Zhornokuy, who determined that the use of venture capital to invest in innovation in Ukraine is underdeveloped. According to B. Derevyanko, Ukrainian venture capital funds do not take into account the peculiarities of the nature of venture capital investment. The origins of the legal support of venture capital investment were identified by D. V. Zadychailo. The implementation of venture relations through investment agreements was the subject of research by O. E. Simson. Purpose of the research is to determine legal principles of venture investment into startups as innovative product. article’s main body. Venture entrepreneurship is activity with a special risk, since it is aimed at making investments into scientific and technical result intelligence. It has been emphasized that venture investment in terms of the martial law acquires a special scientific and practical importance for the post-war recovery of the Ukrainian economy and the development of society. It has been proved that startup’s criteria established by the legislator are close to the criteria for protecting the objects of intellectual property rights, in particular objects of industrial property (inventions, utility models). Therefore, one of the startup’s legal features is its correlation with the corresponding object of intellectual property law, which has received state registration. At the same time, the startup, despite receiving legal protection, is not embodied in a certain production, scientific and practical intelligence is still being conducted in its regard. It has been emphasized that the lack of a sustainable practice of using startups indicates the existence of risk regarding its investment. As a result, a startup can be defined as an object with elements of risk for its further implementation. It has been argued that startups can be considered as innovative product. It has been revealed that a startup’s implementation as an innovative product has certain specific features stipulated by the economic cycles (stages) of its creation and implementation. Each of the identified stages has legal significance, since it can be correlated with the competitive selection of startups to receive investments, in particular due to financial state support. At the same time, both scientific technical and entrepreneurial activities in the field of venture investment take place at each of the stages of a startup’s implementation as an innovative product. The importance of the activities of the Innovation Development Fund (Ukrainian Startup Fund) has been emphasized, which allows startups to receive state investment, since investing into this innovation is significantly risky. Therefore, the state creates appropriate stimulating mechanisms for the creation of the startup market. conclusions and prospects for the development. Summarizing the above, we offer conclusions that startup is a new legal category that needs further scientific studies. Based on the conducted research, we have distinguished the following characteristics of a startup as an object of rights: it is the result of scientific and technical creativity; has state registration as an object of intellectual property rights; has not been implemented into systematic production; has novelty for the relevant market of goods and services; refers to objects with increased risk; has the dual legal nature both of an innovation and a separate investment project. We have offered the division of startups depending on intellectual property institutions: a) startups in the field of copyright (computer software, databases); b) patent and legal startups (inventions, utility models, industrial designs); 3) startups in the field of non-traditional intellectual property objects (new varieties of plants, layout of an integrated microcircuit).