蔬果攝取量的不足與慢性疾病的發生具有密切關聯性。蔬果攝取行為可能受到多項因素影響，本研究係以心理社會因素層面分析蔬果攝取相關行為，探討國人蔬果攝取行為與心理社會因素之相關性。研究對象遴選以方便取樣法取得，受試者來自南部某政府機關，總樣本數為237人 (男性N=89，女性N=148)，以問卷調查方式進行資料收集。研究架構上以心理社會學說做為理論基礎，包含健康信念模式、計畫行為學說、與社會認知學說等。結果顯示，受試者每日蔬果攝取量小於五份者佔75.4%，表示其大多數蔬果攝取量均有不足之現象。影響蔬果總攝取量之心理社會因子為「態度」(β=1.272，p=<0.05)，影響水果攝取量為「自覺罹患機率」（β=0.526，p=<0.01）及「態度」(β=0.927，p=<0.01)，而蔬菜攝取量則受「行為意願」影響較大（β=0.824，p=<0.05)。研究成果可應用於從事營養教育或諮詢時之重要參考依據。 Insufficient intake of fruits and vegetables (F&V) correlates closely with the occurrence of chronic diseases. There are many factors that may influence the F&V intake behavior. Present study attempts to understand this behavior from the perspectives of psychosociology, and to examine the relationships between F&V intake behavior and psychosocial-related factors. The subjects were selected by convenience sampling method. A total of 237 subjects (89 males and 148 females), employee in the government agency in Southern Taiwan, were recruited in this study. Based on psychosocial theories, including Health Belief Model, Theory of Planned Behavior, and Social Cognitive Theory, the survey questionnaire was developed and used as measuring tool to collect data. The results showed the intake of F&V was insufficient since there were 75.4% of subjects whose daily consumption of F&V less than five servings. Attitude (β=1.272，p=<0.05) is the psychosocial factor influencing total F&V intake. Besides, fruit intake was affected by perceived susceptibility （β=0.526，p=<0.01）and attitude(β=0.927，p=<0.01), and vegetable consumption was affected by behavioral intention (β=0.824，p=<0.05). In application, the influencing psychosicial factors may serve as an important reference while implementing nutrition education intervention or conducting consultation to help individual dietary modification.
