Showing the importance and the expansion of psychology in the practice and its use in many areas of life, educational, environmental, tourism, personal, military, economic and various organizations, institutions related to marketing, sales and consumption. Psychology has gained a tourist subsidiary status in psychology and the sciences. It confirms the understanding, predicting and controlling individual behavior commensurate with the work of tourism. It is concerned with the application of its findings in such areas as: training, programs, evaluating personnel, and evaluate the individual capabilities of individuals for certain posts, in tourism agencies tourism services, which require consideration of the skills of workers in these companies and training consistent with the scientific bases. The research aims to apply the principles, concepts and theories of psychology to work in tourism, to shed light on some of the principles, theories, information, and facts that play a significant role in the development of tourist behavior and personal motives and trends. Among the most important recommendations are: 1-Development of organizational behavior and change the negative behavior of workers through the application of the theories of psychology for the development of skills of trainees after subjected to the process of training. 2-Need to take advantage of the scientific, research and studies in psychology and its role in the success of tourism.