Urgency of the research. The rapid changes in the factors that determine competitiveness in world markets, the dynamic development of the global environment, make governments, in shaping the conditions for economic growth, to more actively address the challenges of ensuring national competitiveness on a global scale. It is necessary to introduce a comprehensive model for assessing the state of the investment climate of the state, creating attractive conditions for the development of its image. Target setting. The problem of raising the level of development of the Ukrainian economy as a whole by ensuring the proper level of management of the investment climate becomes one of the main in the modern economy. Actual scientific researches and issues analysis. The fundamental works devoted to the analysis of the state of the investment climate include the works of M. Simonova [1], Ya. Zhalilo [4, p. 125]. However, a comprehensive scientific study on the formation of a general system for assessing the state of the investment climate of the national economy has not been carried out. Uninvestigated parts of general matters defining. Despite the research in the field of formation, analysis and management of the state of the investment climate of the state economy, all existing indicators of international economic indices and ratings are exclusively indicative and general informational. The research objective. The purpose of the article is to develop methodological principles for rating assessment of the investment climate by generalizing methodological approaches and systematizing rating assessments, which enables the target orientation to the needs of the subjects of investment climate management in the national economy and provides an opportunity to formulate a generalized comprehensive model of investment climate assessment of the Ukrainian economy. The statement of basic materials. The article deals with the features of creating a comprehensive generalizing system for monitoring the state of the investment climate in Ukraine's economy and introducing innovation activities into scientific work. Conclusions. An analysis of foreign methods of assessing the status of the investment climate allows us to conclude that the construction of the index on the criterion of the state of the investment climate should be based on a systematic analysis of the situation and a comprehensive search for possible ways for its further development.