Through 366 questionnaires answered by high star hotel employees in Changsha city, it tries to explore the reliability and validity of intrinsic motivation scale, and discusses the influence of demographic characteristic on intrinsic motivation by optimal scaling regression analysis. The results show that demographic characteristic has an important impact on the intrinsic motivation of hotel employees. Intrinsic motivation is most related to seniority, age and level of education, but gender has no significant influence on the intrinsic motivation.