Аннотация: This article is devoted to the key topic of today – a Big Data analysis. Big Data is a huge volume of structured and unstructured data of various types that is growing every day. With the development of the Internet of things (IoT) and the increase in the number of users on the Internet, data is becoming more and more and it is necessary to use the latest methods and technologies to analyze it. Conventional databases cannot handle this amount of information. The article discusses examples of using Big Data analysis for effective work of organizations from different fields of activity. It also describes modern technologies and methods for analyzing a variety of information of enormous volumes.