As the current clothing design methods do not give a rapid and high-quality design results in today's conditions (rapid changes in fashion, small-scale series production, individualized products), research for fundamentally new clothing design methods that are able to provide each customer the most suitable clothing creation by using Computational techniques is necessary. Such technology requires the realization of the human body shape digital description of the acquisition, adapted and improved by reflection infrared laser beam using a contactless method for 3D positioning. Existing 3D garment computer aided designing (CAD) system modules used in digital standard size dummy description, which in some cases can be partially individualize using a limited range sizes. Digital human body data acquisition is gained by scanning cameras that has been integrated into clothing CAD systems. Unfortunately, now they are too expensive for public use. Surface topography obtained by scanned data is further converted into the traditional measurements and used in traditional 2D pattern development, or create personalized virtual 3D parameterised dummies that are used in the design and evaluation of virtual try-on. The existing CAD systems do not allow making an adequate 3D clothing model with the following model spreading in plane. Only such principle would exclude laborious Fitting and refinement from the design process, and will combine individual and mass production advantages, most important of which is a good fitting, the possibility to see 3D shape of garment before production, short producing time, and individual models for relatively low price. To realize the technology that makes it possible to design clothes in 3D, it is necessary to develop effective human body scanning system that creates a digital human body model in computer system. Firstly, the scanning is done to develop 3D shape reconstruction model for human body bearing surface. The generation of virtual mannequin, it is necessary to choose the scanning postures not to deform the human normal posture (which leads to inaccuracies in the clothing patterns). The mathematical calculations in this study are done in the infrared laser beam method human body surface describing coordinates - program excludes the zero points. 3D point cloud is connected via spline, and other geometric means, such methodology create different point levels, for human body surface topography extremum levels. From the resulting geometric objects are created the frame of the human body surface. Defined 3D bearing surface via triangulation method transformed to the 2D. Consecutive triangles are taken in the direction of the bottom layer on top. The study established a new mathematical model of a human body surface. Model is the human body 3D bearing surface. Acquired body (torso) surface-lining model, which may be used in future studies, simulations would be improved to approximate gained spreading to the garment construction.