本研究係根據犯罪共通性理論(General Theory of Crime)分析我國近年來性侵害再犯現象。研究方法採次級資料調查法，蒐集出監性犯罪人人口特性、執行紀錄、犯罪情形與再犯紀錄等資料。研究對象爲台北、台中、高雄等三所監獄於95年及96年間期滿或假釋（排除移監或死亡）之性犯罪收容人，樣本數合計1,002名。研究分析除探討逐年再犯率外，並分析性犯罪類型、年齡與再犯率之關係。研究結果：1.我國性犯罪再犯率低於國外研究結果；2.再犯非性犯罪的嚴重性高於再犯性犯罪，顯見性犯罪再犯並無犯罪專門化的現象；3.家外犯的再犯率高於家內犯，證明機會因素於性犯罪上之重要影響；4.不論是再犯性犯罪或非性犯罪，均呈現年齡愈大，再犯率愈低的趨勢。

Based on the General Theory of Crime, this study explored the phenomenon of sexual recidivism including recidivism ratio, types of criminal, and the relationship between the age and the recidivism. Secondary data analysis was employed to analyze the collected data. The collaborative study sites were Kaohsiung, Taichung, and Taipei Prison. A total of 1002 study participants paroled or discharged from the prison were recruited from the collaborative sites from the year 2006 to 2007. The study findings reveal (1) sexual recidivism in Taiwan is lower than in other countries; (2) the ratio of non-sexual recidivism is higher than sexual recidivism supported by A General Theory of Crime; (3) frequency of sexual recidivism occurred outside the family more than inside the family; and (4) older offenders recidivated less than younger offenders.