| The paper was based on 21 itemsof anthropometric data of 1885 primary and middle school students aged 7-17 in Beijing.By reviewing the domestic and international children’s clothing standards,body type and sizes research and using data analysis software and mathematical statistics methods,data collation and analysis were done.The paper studied the change of body type of primary and middle school students aged 7-11 years,and the classification of boys and girls can not be considered.Used BMI and height-chest ratio to classify samplesaged 12-17 years,and classified them into normal,slender and strong types.In addition,the research analyzed the high grade from many aspects,and used correlation analysis and regression analysis to get the other parts.And pushed the gear to got the clothing sizes series,which are suitable for primary and middle school students in Beijing,and increase weight and age for reference.The research results have some reference value for the size and shape of minors in Beijing area and even in the larger scope,which can provide reference for the production and design of clothing. |