本研究旨在分析中華職棒球迷運動社會化支持職棒隊的原因，並探討運動社會化與職棒認同之關係。研究以中華職棒四支球隊之支持球迷為對象，並於2012年四支球隊於台中市出賽時，在現場以便利取樣法實施問卷調查，共計回收有效問卷720份。所得資料經統計分析後，本研究有以下的發現：1.運動社會化代理人對於球迷開始觀賞職棒有影響存在，尤其兄弟象隊球迷受到的影響最高。2.不同職棒支持球隊之球迷在「形象認同」、「球隊認同」、「情感認同」、「產品認同」以及「依附認同」因素上都有明顯的不同。3.運動社會化代理人中的「母親」、「同儕團體」、「學校師長」、「大眾傳播媒體」以及「職棒球員」對於球迷在「職棒認同」影響具有高度預測作用。根據上述分析結果，本研究不僅對職棒經營實務上提出建議，亦對未來研究者提出具體研究方向。

This study aimed to analyze the Chinese Professional Baseball fans sport socialization reasons to support the baseball team, and to explore the relationship between the socialization agencies and professional baseball identity. In this study, four of the Chinese Professional Baseball League team of the support of the fans for the object, and race in Taichung City in 2012, four teams in the field implementation of the questionnaire in order to facilitate sampling for a total recovery of 720 valid questionnaires. Information obtained through the statistical analysis, the following findings: 1. Sport socialization agencies for the fans began to watch baseball influential, especially affected by the Brother Elephants fans the highest. Two different baseball fans support the team, image recognition, "team identity", "emotional identification", "Product Identity" and "dependent recognition factors have significantly different. 3 "Mother" in the sport socialization sources, the "peer group", "school teachers", "mass media" and "baseball players" for the fans "baseball identity affect highly predictive effect. Based on the above analysis, this study not only the baseball business practice recommendations also propose specific research direction for future researchers.