本研究在探討中學生共依附特質與信任感之之間的關係，以臺灣地區國、高鞏學生共1264人為研究對象，採問卷調查法進行資料收集。所使用的研究工具包括「共依附量表」、「共依附評估量表」與「信任量表」。研究發現：中學生於共依附特質上、信任表現上皆呈現出性別間、年級間的差異，而共依附特質與信任的發展皆非呈現單一發展趨向；同時，共依附特質與信任感之間有典型相關。最後根據本研究發現建議：教育或輔導人員應留意中學生於共依附特質及信任表現上之性別間、年級間的差異與發展趨向，以增進對其人際困擾的理解；進行青少年教育或輔導時，亦應重視共依附特質與信任關係的評估，以利助人關係的建立。

The purpose of this study was to explore the relationship between high school students’ codependency and trust. The sample consisted of 1264 students from high schools in Taiwan. The instruments used in this study included The Spann-Fischer Codependency Scale, Codependency Assessment Questionnaire, and Trust Scale. The primary findings were as follows: There were sex differences, grade differences and varied developmental trends in codependency and trust. And the canonical correlational analysis showed that the relationship between codependency and trust was varied. The first canonical function/ showed that the relationship between codependency and trust was negative. According to the research, teachers or counselors were suggested to pay attention to the sex differences, grade differences and developmental trends in codependency and trust among high school students.