The purpose of this study was to investigate the influence of leisure attitude on prior knowledge, information search, and attachment of marine sports participants Through convenience sampling method, selected 224 survey questionnaires were used for final analysis from marine sports participants. With the collected data one-way ANOVA and multiple regression analysis were performed by SPSS 20.0. The results of the analysis were summarized as follows. First, the participant period no significantly difference on leisure attitude. And the participant period no significantly difference on behavioral attitude, but the participant frequency and participant time showed significantly difference on behavioral attitude. The participant period and participant frequency showed significantly difference on prior knowledge, but participant time no significantly difference on prior knowledge. Moreover, the participant period no significantly difference on information search and attachment, but the participant frequency and participant time showed significantly difference on information search and attachment. Second, the behavioral attitude impacts positively(+) influence on prior knowledge. Third, the cognitive attitude and behavioral attitude impacts positively(+) influence on information search. Fourth, the behavioral attitude impacts positively(+) influence on attachment.