The purpose of this study was to choose the assessment method of usual energy in take for epidemiological study. Energy intakes of 30 female college students estimated by frequency questionnaires and energy balance method were compared with that obtained by dietary record. The results are summarized as follows. Assessment of mean energy intakes by dietary record frequency questionnaires energy balance method were 156.2Kcal, 1517Kcal, 1878.0Kcal respectively. There was no significant difference between energy intake by dietary record and that by frequency questionnaire. Frequency questionnaire covers 4 weeks energy intake and it can be substituted for dietary record. Although energy intake by energy balance method was significantly different from that obtained by dietary record it shows high correlation with anthropometric and obesity indices and energy expenditure of the subjects.