There is no any reports on nation-wide nutrition survey since 1947 in Korea, During the period only the small scaled nutrition surveys have been reported by several investigators. Authors, under the financial support from the Ministry of Health and Social Affairs, Republic of Korea, had conducted a nation-wide nutrition survey, including dietary, clinical, and socio-economical aspects, during the period from 29th of July to 15th of August, 1969. Number of households surveyed and population distribution are shown in Table II-2 and age and sex distribution of the population surveyed are also in Table II-3 in this report. Average food and nutrient intakes are shown in Tables II-6, II-7 and II-8 respectively. For the detailed discussions on food and nutrient intakes, see the Tables II-9 through II-11 and Figures II-1 through II-10 in this report. Anthropometric data are shown in Tables III-1 through III-4 and in Figures III-1 through III-4. Data of deficiency diseases are shown in Table III-5 and in Figure III-5 in this report. Socio-economical data are shown in Tables IV-1 through IV-26 and in Figures IV-1 through IV-3 in this report.