随着经济的快速发展与社会的重大转型，青少年网瘾问题成为中国大陆困扰家庭的社会问题。对于这种新兴的青少年越轨行为，已有研究往往关注青少年自身的心理因素及同伴影响，从社会学角度对青少年问题网络行为及其背后的家庭因素进行系统分析的研究相对缺乏。因此，本研究重新聚焦家庭，整合社会资本理论与一般压力理论，深入地探究家庭对于青少年问题网络行为的影响，并进一步比较家庭和同伴对于青少年上网行为的作用。 / 研究数据来自于2008年的"北京青少年上网行为调查"项目，该项目在海淀区14所中学中抽取697名初中二年级的学生，最终获得有效问卷668份。结合数据，我们将样本划分为安全群体、危险群体及网瘾群体，三个群体占样本总数的比例分别为37.6%、46.4%及16.0%。通过回归分析发现，产生于家庭内部的一般性社会资本（比如孩子对父母的依恋）会对青少年问题网络行为产生显著的负向效应，而功能性家庭社会资本（比如父母与孩子共同上网的行为等）与青少年问题网络行为之间并未出现显著的相关关系。同时，来自于父母的家庭压力（比如孩子遭受父母虐待等）以及越轨同伴都对青少年问题网络行为有显著的正向影响。另外，本研究进一步探究了家庭和同伴的互动关系，并发现因上网而越轨的同伴作为中介变量，跟孩子与父母的负面关系（包括孩子遭受父母虐待及孩子与父母之间的冲突）共同对青少年问题网络行为产生影响作用。本研究还结合了定性分析，对青少年从"正常"到"成瘾"过程中家庭因素的影响做了更深入和全面的分析。不仅从理论层面填补了社会学领域以家庭为焦点解释青少年问题网络行为的空白，而且也为实证领域对青少年网瘾进行有效的预防和疏导提供了重要参考。 / With the rapid economic development and great social change in Mainland China, Internet Addiction among adolescents has become a serious social problem disturbing families. Concerning this rising adolescent deviant behavior, previous studies mainly emphasized the individual psychological factors and some peer influences, but few studies have systematically explained the familial influences behind the adolescent problematic Internet use from sociological perspective. Therefore, this study has returned back to family, combining Social Capital Theory and General Strain Theory in a sociological framework, to explore the interactive mechanism between familial factors and adolescent problematic Internet use. Furthermore, we compare the influences of family and of peers on such deviant behavior. / This study used the data collected by the project of Internet Use among Beijing Adolescents in 2008, which sampled 697 students in Junior 2 from 14 middle schools of Haidian District and finally got 668 valid questionnaires for analysis. We divided the sample into three groups according to the risk degree of their Internet use, i.e., safe group, risk group and addicted group, and the percentages of the three groups to the whole sample are 37.6%, 46.4% and 16.0%. With the regression analysis, we found that the general internal-family social capital (e,g., attachment to parents) was significantly negatively related to the adolescent problematic Internet use, while the functional family social capital (e.g., aligned Internet use between parents and children) had no significant effect on adolescent problematic Internet use. And, both family strain (e.g., experience of parental maltreatment) and deviant peers had significant positive influence on adolescent problematic Internet use. Furthermore, we explored the interactive relationships among family strain, deviant peers and adolescent problematic Internet use, and found deviant peers, as a mediating factor, together exerted influences on adolescent problematic Internet use. / This study also combined the qualitative analysis to explain the deeper familial reasons in the process of adolescent becoming "addicted". It not only filled out the gap in sociological research area with focusing on family to systematically explore the social influences on adolescent problematic Internet use, but also provided important references to the practical prevention and treatment of adolescent Internet Addiction. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / 孟宏. / Thesis (Ph.D.) Chinese University of Hong Kong, 2014. / Includes bibliographical references (leaves 117-137). / Abstracts also in English. / Meng Hong.