Abstract: The paper summarizes the background and research status of the fabric formability and introduces the principle of structured light non-contact 3D scanning measuring instrument test. In order to quick, easy, accurate measuring and evaluating the mouldability of the glass fabric, put forward a kind of intuitive, objective and accurate evaluation method on the basis of using 3D scanning technology. Firstly, making sample fabric wrinkle under the action of the ball with the help of 3d scanning for digital model, and puting forward using the three-dimensional processing software model for processing related indicators.The volume under the fabric can characterize fabric formability better by analysing ten samples characterization and evaluation of fabric shape ability provides a new train of thought.This method provides a new thought for determination and evaluation of the fabric’s formability.