Abstract: To the problem of the lack of models’ garment size in the state body ,using 3D body measurement techniques to measure 192 , aged between 18 and 24 Jiangsu-Zhejiang female models for 60 indicators measurement ,and use SPSS software for principal component analysis, as well as compress the more than 60 measurements to height, bust, waist, hip circumference, waist high these 5 aspects. Then, it gets the classification number for k-means clustering through stratified cluster analysis method. And by k-means clustering method, we get the Y body models respectively garment sizes standard which the height are amidst 170cm, 175cm, 180cm; Waist high are amidst 109cm, 112cm, 105cm; the bust are amidst 84cm 87cm, 90cm,; Waistline are amidst 62.5cm, 65.5cm ,68.5 cm，respectively ,hip circumference are amidst 90cm, 92.5 cm,95cm .

Key words: 3-D human body measuring , model , clustering analysis , standard of garment size