In the article, factors of influence and conditions of investment attractiveness in the Eastern European countries and Ukraine are characterized on the basis of the analysis of the relevant statistical factor, the main features of the investment environment. The given metric is widely used by leading international organizations and analytical companies, which, on the one hand, makes it possible to construct long statistical series, and on the other hand, it is a pictorial indicator of the investment attractiveness of the country. The article considers the special aspects of the investment environment in connection with global track records of the world economy and changes in the area of sustainable development. The dynamics of increase of volume of foreign investments in the national economy and structure of volumes of investments made from Ukraine into the economy of other countries of the world are analysed. The article analyses the factors that influence the adoption of investment decisions and determines the quality of the environment in which the subjects of investment act. In order to determine the factors and conditions for the formation of Ukraine’s investment attractiveness, the method of SWOT-analysis was used, based on the results of which it was revealed the threats and advantages and opportunities of improving the investment climate in Ukraine. The method of constructing a multifaceted regression model is used to determine the effect of the main factors shaping the investment climate of the country. The research methods are based on general scientific principles and fundamental positions of economics, social philosophy and statistical science. The results of the analysis determined the need for a comprehensive assessment of the state and trends of the investment climate in Ukraine, using statistical tools for analysing and agreeing quantitative and qualitative components of the model of investment attractiveness estimation of Ukraine and other EU member states. The analysis outputs and the empirical analysis may be used to promote further research for making informed decisions in order to improve the investment image of Ukraine and increase the volume of attraction of foreign investments and capital investments into the national economy.