本研究為描述相關性研究設計，調查癲癇患童母親之不確定感、家庭界限混淆及憂鬱之間的關係。個案來源為台灣三所教學醫院之癲癇兒童門診，共324位母親參與研究。受過訓練的研究助理協助母親填寫雙親不確定感量表、家庭界限混淆量表及貝氏憂鬱量表。母親之不確定感與家庭界限混淆及憂鬱呈正相關。家庭界限混淆與憂鬱為正相關。逐步迴歸分析結果顯示家庭界限混淆、不確定感及母親的年齡是母親憂鬱程度的預測因子，共可解釋21.49%之總變異量。研究結果提供一科學性護理措施之知識基礎，建議護理人員可提供母親有關患童疾病之詳實資訊、維護家庭界限完整之親子互動模式及母親的調適策略。

　　　　　The purpose of this study was to use a descriptive correlational design to examine the relationship among maternal uncertainty, boundary ambiguity and depression in families having a child with epilepsy. Three hundred and twenty-four mothers from the child epilepsy day-clinics of three teaching hospitals in Taiwan participated in this study. Data collection was performed by well-trained research assistants who helped mothers fill out the well-developed Chinese version of the Parental Perception of Uncertainty Scale, the Boundary Ambiguity scale, and the Beck Depression Inventory. Uncertainty was positively associated with boundary ambiguity and depression. Boundary ambiguity was positively associated with depression. Stepwise regression analysis demonstrated that boundary ambiguity, uncertainty and mother's age are predictors of a mother's depression which account for 21.49% of the total variance of depression. The results provide a scientific knowledge base for nursing interventions that aim to provide clear information about the child's illness and help to establish appropriate patterns of parent-child interaction in terms of maintaining family boundary integrity and mothers' functional adaptability.