Survey on the prevalence rate of peptic ulcer (PU) and its associated factors in 3440 elderly people aged 60 or above, living in some area of Beijing is reported in the paper. The survey was carried out from July to October, 1993 through administration of household questionnaire. Result showed that the prevalence rate of PU was 4.1%, higher among males (5.3%) than in females (2.9%). There were more, younger, elderly and more farmers living in mountainous areas suffered from the disease than, older, elderly and rural farmers or urbanial residents. It is demonstrated that depression, intelle ctual work, cigarette smoking, heavy alcohol intake and higher educational level were correlated with the occurrence of the disease in the elderly. Neither dietary structure or light alcohol intake was found to be associated with prevalence of PU with statistical significance. We revealed that the prevalent rates of PU in the elderly were different according to age, sex, geographic area, educational level and professional aspects. The influence of psychological factors to the prevalence rate of PU should also be considered.