Objective  To discuss the main reasons for the difference of sedum development between Daur adults in Inner Mongolia and Xinjiang.    Methods  Nine circumference values and six skin fold thickness of 544 adults of Daur nationality (304 in Xinjiang and 240 in Inner Mongolia) were investigated by random sampling. Circumferences, skin fold thickness and obesity indexes of Daur nationality in Xinjiang and Inner Mongolia were analyzed.    Results  There were significant differences in 8 circumference without thigh circumference, 2 skin fold thickness such as triceps skinfold, subscapularis skinfold, 3 obesity indexes such as Verv index, body fat rate, body mass index(BMI). Correspondence analysis showed that subcutaneous fat development was stronger in northern regions than in southern regions.    Conclusion  The Daur nationality in Inner Mongolia has more fat and less muscle than that in Xinjiang. The problems of overweight and obesity in both regions are serious. It is suggested to pay attention to exercise and diet. Low temperature，lack of physical exercise, low temperature, low economic and medical standards and unhealthy eating habits can thicken subcutaneous fat.