This paper deals with the theoretical and practical processing of the topic "Methodology of Investment Project Making". The methodology of making an investment project is similar to the development of a business plan with an emphasis on investment investment. An investment project is a presentation and elaboration of the ideas and goals of an enterprise intending to make a certain investment. The purpose of the investment project is to enable and manage the companies and other partners involved in the project (business partners, banks, local authorities ...) to gain a complete picture of the company, project idea and project implementation requirements. In order to reduce project implementation risk, the investment project requires a detailed analysis of investment costs and operating costs, a detailed analysis of total revenue, and uses a large number of methods when assessing the justification of an investment. It also includes market analysis, technical-technological analysis, location and economic-financial analysis to show whether the investment of funds is justified and acceptable.