This study examines the use of nutrient media in microbiological research. The aim of the investigation is to analyze the main types of nutrient media, their composition, and their role in the cultivation of microorganisms. A classification of nutrient media and the specific features of their application in laboratory practice are presented. The findings demonstrate that the correct selection of nutrient media plays a crucial role in the isolation, identification, and study of the biological properties of microorganisms, thereby ensuring the reliability of microbiological research outcomes.