Tbe repeated diabetic detection survey was conducted for 4 consecutive years, 1969~1972, in a bank employees in Seoul The postpreadial uiiae augar test with Tes-tape followed by glucose tolerance test was given to 1697 employees . 1)Among the 1967 examinees,208(12.3%) was found with positive glycosuria The glycosuria positive rate in 1,256 males was 16.2%. 2) The number of positive glycosuria was 86 (7.3%) in 1969, 70(5.2% in 1970, 84(5.9%) in 1971, and 85(5.8%) in 1972. Only less than 50% of totel 208 positive glycosurias was found annually. 3) Out of 208 cases with positive glycosuria, 61 diabetics were found. The prevalence rate in male was 4,9%. Among the male examinees with positive gIycosuria, 30. 4% were shown as diabetics. Out of 61 diabetics 18 cases had been previously known and 43 were new cases. 4) Out of 44 eases with trace glycosuria, 12(27.3%) were diabetics.