This qualitative case study aimed to explore the Difference Analysis of Competitive Athletes Involved in Homogeneous Leisure Activities – the Cases from Senior High Athletes in Taichung Municipal Senior High Schools of eight Taiwan’s players.The purpose of this study consisted of five phases including The players’ recreational motive, The players’ mental preparation before games, The difference analysis of competitive athletes involved in homogeneous leisure activities, The players’ views on values, and different background The players’ challenges and their solutions. The major method for data collection was face-to-face in-depth interviewing, each of which lasted for 60 – 90 minutes, each player for 2-7 times, and conducted from March, 2011 to April 2011. After transcriptions, member check was used to enhance credibility. In addition to the interviewing, the information about the players from news and internet was also used to triangulate data. The cross-case analysis was used to analyze data and peer briefing was conducted to advance trustworthiness. The results of the study showed: The players’ participating motivations were derived from their occupations and families. Most of the players used “image training” that was told by the peers. The senior players worried about their future. Therefore, the school education should emphasize their career guidance and planning and provide with concrete assistance. They anticipated for a prosperous vision of Taiwan’s development because nowadays there had been limits on the relevant system and personnel. The reevaluation of resources for recruiting elite players should be done immediately.