目的：國內近年來青少年犯罪人數逐年遞減，但青少年性犯罪卻逐年上升，但針對國內青少年性犯罪尚未有大規模的研究報告，本研究提出台灣青少年性犯罪的本土資料來探討相關的心理社會因子。方法：本研究爲回溯性描述與資料分析，採案例分析方式，探討影響青少年性犯罪的心理社會因子。結果：共八名犯行時未滿十八歲的青少年性罪犯；全部的個案有偏低的智能和不佳的學業成績；大部分個案有嚴重的家庭問題：家庭內暴力與不穩定的家庭結構；超過一半個案有校行爲問題、物質濫用行爲。結論：家庭問題與偏低的智能對青少年性犯罪關係甚深，這兩者可能影響青少年成長過程中的人格發展、壓力因應、社交技能與決策判斷，進而增加青少年不當的行爲問題、物質濫用與性犯罪。

Objective: In recent years, the number of juvenile crime has decreased year over year; however, juvenile sex crimes have continued to increase. There is no large-scale study of juvenile sexual crime in Taiwan. In the study, the data of juvenile sexual crimes in Taiwan were to explore the psychosocial factors. Methods: This study is retrospective, and case series report approach is also adopted. Result: Eight transferred for assessment sex offenders under the age of 18 years old were used as the study subjects. Most cases had serious family problems, including unstable family structure and parents with domestic violence. All of the cases demonstrated lower intelligence or poor academic performance. Many of them had serious behavioral problems, such as, violating school rules and having substance abuse. Conclusions: there is a significant relationship between juvenile sex crimes and family problems or lower intelligence. Both may affect the growth of them in the process of personality development, stress coping, social skills and decision making, thus increasing the issue of behavior problems, substance abuse and sex crimes.