Objective To evaluate 3～6 years old children's physical development and nutrition status in Guigang,in order to provide a guide for children health and nutrition diet therapy and further to improve the nutritional status of children. Methods A total of 1 200 cases of 3~6 years old children were selected in Guigang.Using stratified random sampling method,6 kindergartens were selected randomly in different functional areas (including the school condition was good,medium,poor kindergarten each 2).By detecting child body composition:water,the total amount of body fat,protein,skeletal muscle,inorganic salt,analysising the period of children body composition growth and development and shape,to evaluate the growth and nutrition condition. Results The difference was statistically significant in 3～6 years old male,female children physical development,compared with the 2005 national survey of the same sex and age group of children's height,weight,Guigang was low;Evaluation of growth "moderate" up,"in the upper,lower" second,"the finest inferior,inferior" at least;children with low birth weight ratio upper,lower" second,"the finest inferior,inferior" at least;Children with low birth weight ratio was 2.50%,weight loss ratio was 2.33%,slow growth ratio was 3.17%,overweight ratio was 9.25%,obesity ratio was 2.58%.Protein deficiency ratio was 11.92% and inorganic salt deficiency ratio was 12.25%. Conclusions Preschool children in Guigang city,the malnutrition rate is low,the growth condition overall is good,but the rate of overweight and obesity rate is higher.In the future,more attention should be paid to the children's nutritional excess,unbalanced nutrition status,promote the children's healthy growth and development,at the same time reduce children's nutrition surplus rate.