The purpose of this study was to examine halo effect of 2002 FIFA WorldCup Korea/japan. I attempted to compare the degree or involvement in 20002 WorldCup and involvement in professional soccer of korea. To achieve this aims, The subject collected 408 open cyber university l-14th June, 2003. The questionnaire of WorldCup involvement(WI) and Professional soccer involvement(PT) was measured by Chon(1998). Kim(2002). The data were analyzed by the frequency analysis, paired-sample t-test, simple regression analysis using SPSS 10.0. The results can be summarized as follows First. Most of the respondent basking in the reflect red devils(korean supporter). but they were not changed the korea professional soccer supporter after 2002 WorldCup Korea/Japan. Second. WI a significant positive effect on PI. That is, There are seems to be the halo effect of 2002 WorldCup Korea/Japan.