Objective: To explore the methods and effects of Prolonged Grief Treatment (PGT) for the Chinese bereaved. Methods: Based on the PGT manual, 15 sessions were conducted for one bereaved person who suffered from grief. Inventory of Complicated Grief-19 (ICG-19), Patient Health Questionnaire 9-item depression module (PHQ-9), Generalized Anxiety Disorder-7 (GAD-7), Typical Belief Questionnaire (TBQ), Grief-related Avoidance Questionnaire (GRAQ), and Work and Social Adaptation Scale (WSAS) were used to evaluate the change in the client’s symptoms before and after intervention. Results: Grief and depression symptoms decreased, dysfunctional grief beliefs and grief avoidance reduced, and functional impairments improved after 15 sessions of PGT. The follow-up survey six months later indicated the effects of the intervention were maintained. Conclusion: PGT may contribute to the grief intervention in Chinese bereaved individuals.