Cyclodextrins and their derivatives are very interesting compounds with wide perspective applications. They have been used in analytical chcemistry and some branches of industry and many other applications have been studied. Many possibilities of cyclodextrins´ employment are in biotechnologies and protection of environment. Physical and chemical properties of cyclodextrins enable to use them in environmental chemical analyses, in recyclation and remediation efforts. Many common technologies and processes can be modified and harmful organic solvents can be replaced using cyclodextrins. This review article describes cyclodextrins´ properties and various applications.