Energy expenditures of 30 preschool children (with one half of males) randomized from 181 subjects aged from 5 to 6 in the same kindergarten were carefully measured by indirect method and respiratory chamber, including 21 items of activities and a total follow-up time-motion estimations was also made.The lowest energy expenditure in daily activity was the item of while asleep 0.709 kcal.m-2. min-1, physical exercise was at the middle 1.851 kcal .m-2. min-1, and the rapid running was the highest 4.762 kcal.m-2.min-1. A total average energy expenditure in 24 hours estimated was 1049.08 to 1177.66 kcal/day. The results were discussed.