本研究旨在探討國民中學教師心理擁有感、教師工作滿意度與教師組織公民行為之關係，並探究工作滿意度在心理擁有感與組織公民行為之間是否具有中介變項的效果。研究採用問卷調查法，以臺北市國民中學教師為樣本母群體，採分層隨機抽樣，抽出30所國中共計450位受試者，回收有效問卷384份，所得資料分別以描述性統計、t考驗、單因子變異數分析、迴歸分析Sobel檢定等統計方法進行資料的分析與處理，以了解國中教師心理擁有感、工作滿意度與組織公民行為之現況、差異情形及其預測力。研究結論如下：一、國中教師對學校的心理擁有感現況中上。二、國中教師工作滿意程度屬中上，以「工作環境」滿意度最高。三、當前國中教師組織公民行為之表現屬中上，以「對學生之公民行為」最佳。四、年齡、服務總年資兩個背景變項在教師心理擁有感上有顯著差異。五、年齡、擔任職務兩個背景變項在教師工作滿意度上有顯著差異。六、服務總年資、教育程度及擔任職務等三個背景變項在組織公民行為上有顯著差異。七、心理擁有感與工作滿意度對組織公民行為具顯著正相關及預測效果。八、工作滿意度在教師心理擁有感與組織公民行為間具有部份中介效果。最後依據研究結果與結論，提出具體建議，以作為教育行政機關、國中校長以及未來研究的參考。 / The purpose of this study is to investigate the relationship among phychological ownership, job satisfaction and organizational citizenship behavior of junior high school teachers. Furthermore, the mediating effect of phychological ownership and job satisfaction on organizational citizenship behavior was examined. A survey research was conducted using a sample of junior high school teachers in Taipei. 450 teachers from 30 schools were selected by stratified random sampling. 384 valid sample data collected was analyzed and processed with the methods of descriptive statistics, t-test, one-way ANOVA, multiple-regression analysis and Sobel test. The major findings of this study are as follows: 1.Teacher’s phychological ownership is above average. 2. Teacher’s job satisfaction is above average, “working environment” ranks the top. 3. Teacher’s OCB is above average, “OCB-defending the individual students” ranks the top. 4. Two demographic variables, including age and total serving years show significant differences in phychological ownership. 5. Two demographic variables, including age and position, show significant differences in job satisfaction. 6. Three demographic variables, including total serving years, education and position show significant differences in OCB. 7. Phychological ownership is positively related to job satisfaction and OCB. In addition, phychological ownership has positive direct effect on OCB, job satisfaction has positive direct effect on OCB. Phychological ownership has positive direct effect on job satisfaction.　8. Job satisfaction does have mediating effect on phychological ownership and OCB. Based on the results of the research, suggestions for educational administration authorities, principals and future related study are proposed.