此研究以性犯罪預防為出發點，探討支持系統與家庭結構預測變項與性犯罪相關性，作為預測和治療處遇參考，提供有效的再犯預防以提供政策修訂參考。本研究採結構式問卷調查，至獄中以立意抽樣蒐集200名性犯罪者為研究對象。結果發現，初／累犯者年齡、教育程度、與宗教影響顯著相關。ANOVAs分析發現，初／累犯者的支持系統及家庭型態因家庭收入及婚姻狀態的不同呈現顯著差異。邏輯迴歸係數中發現所有投入自變項對初／累犯組別預測迴歸模型的整體模式達顯著考驗，家庭結構的Wald指標達.05顯著預測。研究結果支持家庭結構對性犯罪者的重要性。性犯罪的預防應結合家庭治療模式與社區身心治療模式，運用家庭協助社區監控，發揮教育與支持功能，防範性犯罪，增加社會安全性。

Based on the prevention of sexual criminal, the study explored the family structure and support system for the sexual offenders. The findings would contribute to the revision of preventative recidivism policy. Structured survey technique was adopted. 200 participants were purposively selected from one of jails in Taiwan. The study findings indicated the age, educational level and the impact of religion were correlated to the rate of criminal for the sexual offenders. ANOVAs presents significantly difference in support system and family structure for sexual offenders on their household income and marital status. Logistic regression shows goodness of fit on overall model, family structure variable presented a significant predictor on this model. These findings support the importance of family structure for sexual offenders. For prevention of sexual criminal to increase social security, it is essential to incorporated family therapy with individual treatment plan. In this way, we could enhance the monitoring ability on the family and strengthen its educational and supportive function for the sexual offenders.