Objective  To reveal the relationship between lipid distribution and age in Zhuang-Dong ethnic group in China.    Methods  By bioelectrical impedance analysis method of Zhuang-Dong 13 ethnic body composition in China, u inspection method , for the inspection of body composition differences between the sexes, the indicators by adopting the method  of correlation analysis on body composition and age related analysis, variance analysis method was used to explore three body composition differences between age groups.    Results  The body fat rate was not high and did not reach the obesity level. Half of the men and more than half of the women had fat rates in the standard range. The body fat rate of Dong nationality and Bouyei nationality was higher, but that of Kelao nationality and Kelao nationality was lower. With age, there was no significant change in the upper limb fat rate of males, while the visceral fat rate and trunk fat rate increased, and the lower limb fat rate decreased. There was little change in the total fat rate and the lower limb fat rate. With age, there was no significant change in body mass index (BMI), total fat percentage, trunk fat percentage, and limb fat percentage. Women had a significantly higher percentage of body fat than men. There was no significant correlation between left and right upper limb fat rate and age in males, body fat rate, visceral fat level and trunk fat rate were significantly positively correlated with age, and left and right lower limb fat rate and age were significantly negatively correlated. The left upper limb fat rate, left and right lower limb fat rate were negatively correlated with age, and the trunk fat rate was positively correlated with age. There was no significant correlation between age and total female lipid.    Conclusion  The body fat of Zhuang-Dong ethnic group in China is much thinner than that of north Asian ethnic group, and it has the characteristic of sebum development level of southern Chinese ethnic group.