本研究旨在建立影響大學生偏差行爲的解釋模式，主要探討依附、自我控制、逸樂休閒和偏差同儕對偏差行爲的影響效果。以中區16所大專院校一年級學生爲研究對象，發出800份問卷，回收有效問卷共536份，資料以LISREL 8.52版進行模式分析。本模式適配(χ^2/df=320.59/155，RMSEA=0.046)情形良好。分析結果顯示：一、依附對偏差同儕具有顯著負向的影響，依附並透過偏差同儕對偏差行爲產生間接且正向的影響效果；二、自我控制對逸樂休閒、偏差同儕及偏差行爲具有顯著且正向的影響效果；三、自我控制透過逸樂休閒、偏差同儕對偏差行爲產生間接且正向的影響效果。當依附的傾向愈低，則結交愈多偏差同儕；當結交愈多偏差同儕時，發生偏差行爲的可能性則愈高；大學生自我控制力愈低，則結交愈多偏差同儕，參與更多逸樂休閒，進而發生偏差行爲的可能性愈高。因此，重視家庭、學校及同學的依附，以及自我控制能力的培養，慎選休閒活動與交友情形，可能減低大學生的偏差行爲。

This study aimed to establish an explanatory model for university students' deviated behaviors and investigate the impact of attachment, self-control, pleasure leisure activities, and deviant peer on deviated behaviors. The research subjects were freshmen in 16 universities. A total of 800 questionnaires were distributed, and 536 copies were collected. The collected data were later analyzed with LISREL 8.52. The fitness of the model was good (χ^2/df=320.59/155, RMSEA=0.046). The analysis results showed that (1) attachment has a significant and negative effect on deviant peer, and attachment will create an indirect and positive effect on deviated behaviors through deviant peer; (2) self-control has a significant and positive effect on pleasure leisure activities, deviant peer, and deviated behaviors; and (3) self-control will create an indirect and positive effect on deviated behaviors through pleasure leisure activities and deviant peer. For university students, if their attachment to the family, school, and classmates is low, they tend to have more deviant peers. With more deviant peers, they are more likely to have more deviated behaviors. If they have lower self control, they may have more deviant peers, participate in more pleasure leisure activities, and are more likely to have deviated behaviors. Thus, if the attachment to family, school, and classmates, the cultivation of self-control abilities can be paid attention to, and pleasure leisure activities and friends can be carefully selected, the deviated behaviors of university students will be reduced.