Аннотация:Chronic pain, defined as pain that persists for three months or longer, is a common and costly heathcare concern.Psychological approaches to the treatment of chronic pain have a longstanding and robust evidence base of positive effectiveness.This chapter briefly reviews the history of these approaches.In particular, the chapter focuses on Acceptance and Commitment Therapy (ACT) for chronic pain, one of the most distinctive examples of the recently developed treatment approaches.The theoretical model of ACT as it pertains to chronic pain is outlined, as is the evidence base regarding its measures, methods, treatment outcomes, and mechanisms.The chapter concludes with a discussion of key clinical issues and the identification of key avenues for future development.