Sleep disorders are common in bipolar disorder. Sleep disorders may be a predictor of the first episode and recurrence of patients with bipolar disorder. At the same time， sleep disorders have many adverse effects on patients with bipolar disorder. At present， the pathogenesis of sleep disorders in bipolar disorder is not yet fully understood， and there are few treatment methods.This article summarizes the pathogenesis and treatment status of sleep disorders in bipolar disorder， in order to provide clinical reference for optimizing the sleep treatment of bipolar disorder.