The purpose of this research is to examine the influences of Seoul Olympics on the changes in sports cultures in Korea. For its purpose, by using both literature analysis method and sense survey method, of which the former is a theoretical study and the latter an empirical study, I reached the following conclusion that: 1. The Influences of Seoul Olympics on the Factors and Varients of the Cultural Changes in Sports. 1) It had a positive influence on the factors of the internationalization in sports(The mean of the perception degree was 3.84). (1) It had a positive influence on the promotion of the interchange in sports(3.96). (2) It had a positive influence on the activation of sports in life(3.70). (3) It had a positive influence on the increase in competitive power in international games(3.82). (4) It had a positive influence on the enhancement of the national prestige(3.93). (5) It had a positive influence on the increase in the frequency of holding international games (3.80). 2) It had a positive influence on the factors of sports administration(3.34). (1) It had a positive influence on the extension of sports organization(3.20). (2) It had a positive influence on the increase of the sports facilities(3.81). (3) It had a positive influence on the promotion of sports finance(3.56). (4) It had a positive influence on the development of sports industry(3.79). 3) It had a influence on the factors of the relation to the North(3.28). (1) It had a positive influence on the promotion of the interchange between the South and the North in sports(3.28). It was estimated that Seoul Olympics had positive influences on the changes in sports culture, considering the perception degree 3.0 in all factors and varients. 2. The Characteristics of the Populational Attributes in the Influences of Seoul Olympics on the Cultural Changes in Sports. 1) The characteristic by sex made no attentive difference in all factors. 2) The characteristic by age made an attentive difference in two factors of the internationalization and the administration in sports, namely, the older a person was, the more positive it was. 3) The characteristic by academic background made no difference in all factors. 4) The characteristic by occupation made difference in two factors of the internationalization and the administration in sports, in other words, managers and workers for self-supporting service and for simple labor were more positive than students and laborers. 5) The characteristic by class made no difference in all factors. The influences of Seoul Olympics on the cultural changes in sports marked obvious characteristics according to the populational attributes. In this way, Seoul Olympics has brought about the structural changes including values and system norms in sports. Therefore it is considered that these prove that the developmental change theory which is macroscopic views in this research is adequate.