Objective To study the effects of sleep intervention on sleep quality of hospitalized elderly patients with sleep-wake rhythm disorders.Methods We applied sleep intervention among 39 hospitalized elderly patients with sleep-wake rhythm disorders.The degree of sleep-wake rhythm disorders was compared by using Athens Insomnia Scale(AIS)and Epworth Sleepiness Scale(ESS)between pro- and post-sleep intervention.Result The degree of sleep-wake rhythm disorders was significantly improved after 3 months of sleep intervention(Z=13.56,P<0.05).Conclusion Sleep intervention at daytime and nighttime may help the hospitalized elderly patients with sleep-wake rhythm disorders resume to normal sleep-wake rhythm gradually so that the hospitalized elderly patients with sleep-wake rhythm disorders can improve sleep quality and recover from diseases.