Family members are crucial for medical disputes. From the psychology and social perspective, the paper analyzes a specific medical dispute case, and discusses the psychological care for (potential) " shidu” (loss of the only child) family. Based on the current social context, an early intervention suggestion is proposed, that is to provide the whole-process psychological intervention to the special patients’ families. The intervention includes: regular psychological evaluation and psychological support if necessary; providing disease knowledge and death education; providing continuous psychological care by the hospital and community; offerring more psychological care for " shidu” family by society.