Abstract： Objective:To investigate the insomnia incidence and treatment status of military retired cadres and offer an instruction for their health care.Methods:We designed a questionnaires composed of general information,health-related factors,diseases,etc.Insomnia manifestations included regular sleep time,shorten sleep time and extent,time of falling asleep,sleep quality,difficultly returning to sleep after awakening at mid-night,insomnia time,etc.Results:A total of 4759 questionnaires (94.2％) were reclaimed.Dyssomnia was found in 1843 persons (38.7％),including 1006 cases of transient insomnia (44.0％) and 837 cases of acute insomnia (36.6％).Conclusion:About one third of the examined military retired cadres have sleep problems,so they should enhance the health care consciousness and receive proper nurse and treatment.