The given work specifies the World tourism development trends and the existing tourism information systems description and analysis. As the results of research there in an indication and reasons that tourism industry has now reached a critical stage and cleared up the main directions of the development of tourism industry. One of the most important directions is the improving of the tourism information technology. Tourism industry uses many different information systems. Systems description and analysis allow us to classify the tourism information systems, to find out the very widespread systems and to formulate the main trends of development of the computer reservation systems.