This research aim participates in swimming exercise after meeting National Chin-Yi University of Technology the student the lesson in the study the situation of motive. With National Chin-Yi University of Technology for 2008 years two, grade three student 110 be named a research object, for the purpose of benefit sampling method, researcher with from plait it's met National Chin-Yi University of Technology student lesson behind participate in participation motive of Swimming exercise to Swimming measure form” is the tool of data collections to carry on inquisition. The research investigates income data, through describe covariance and independent sample t test and single factor variation number analysis, the after the event of the method comparison etc. statistics method analysis, get following result: 1. The participation motive of this research have: Technique development, challenge, exercise fun and peers to relate to on one's own, team atmosphere, health proper can etc. six factor. 2. Relatively meet National Chin-Yi University of Technology student the different background variable participates to swimming exercise after lesson the difference detection on the motive factor: The sex variable attains notable difference.