綜觀憂鬱症預後、復發之各相關因素及危險因子，家庭狀態與個人認知歷程皆與其有密切關聯。研究目的：探討在家庭功能與憂鬱的關係中，社會訊息處理模式所扮演之角色。研究設計：以大學生為參與者(160 位男性，330 位女性)，施測過程請參與者完成家庭衡鑑工具、社會訊息處理量表—家庭版、流行病學研究中心憂鬱量表以及貝克憂鬱量表第二版，以結構方程模式分析資料。結果：在家庭功能對認知之影響中，家庭功能對個體的解釋與目標回應產生階段的影響顯著，但對最後回應評估階段之影響不顯著。家庭功能與社會訊息處理皆顯著影響憂鬱。中介效果分析發現，家庭功能主要經由個人解釋影響其他認知因素，進而影響憂鬱。但家庭功能未直接經目標回應產生或最後回應評估影響憂鬱。討論：家庭功能愈不健康，個人之憂鬱程度愈高。家庭功能主要經由個人對事件的解釋而對憂鬱產生最大的影響。本文最後說明研究限制、理論與臨床意涵，並提供對未來研究之建議。

Among the factors associated with relapse and a prognosis of depression, family and cognitive processes are known to be critical. The main objectives of the present study were to explore relationships among family functioning, depression, and social information processing (SIP) in adults, and to examine the potential mediating role of SIP in the relationship between family functioning and depression. Four hundred ninety university students (160 males and 330 females) participated in the study. Participants completed the Chinese version of the McMaster Family Assessment Device (FAD), the Social Information Processing Scale-Family version (SIPS-F), the Center of Epidemiological Study-Depression (CES-D), and the Beck Depression Inventory-II (BDI-II). The results of the structural equation modeling indicated that family functioning, SIP, and depression were significantly correlated with each other. In addition, it was found that family functioning had a positive effect on the interpretative stage of SIP, and that it had a negative effect on the goal-response-generation stage of SIP. However, family functioning was not found to have a significant effect on the final response-evaluation stage. Family functioning and SIP both had an effect on depression. Further, there was an indirect effect of family functioning on depression via the mediating variable of interpretation. Family functioning was not found to have an indirect effect on depression via goal-response generation or response evaluation. Family functioning exerted the largest effect on depression via a person's interpretation of external events. Research and clinical implications, limitations, and suggestions for future research are delineated.