Abstract: The distribution relationship between the distance ease and the ease allowance in the bust section of different angles was expounded. The 3D-scanner was used to measure the standard body wearing garments of various sizes. And the distance eases of different angles in the bust section were provided. By area of chart analysis, correlation analysis and regression analysis, the main contents were as follows: The distance ease focus on 165°~195° (side) of the bust section, and the distance ease between 90°~150°and 210°~240°were relatively few; The distance ease between 90°and 225°of the bust section were high correlated with the average distance ease at the 0.01 level (bilateral). The distance ease of 240° in the bust section was high correlated with the average distance ease at the 0.5 level (bilateral). The distance ease between 255°and 270°of the bust section were low correlated with the average distance ease. The goodness of fit of the regression equation was good, and the coefficient of determination（R2） in regression equation of 180° is 0.9652.

Key words: bust section , average distance ease , distance ease , 3-D body scanning , regression analysis