Abstract: The fabric smoothness grade is very important for its aesthetic appearance. In this paper,a new method for objective evaluation of the fabric smoothness was proposed,which utilized the grating scanning method and virtual technologies,realized capture,processing and display of 3D information of the fabric surface contour,and obtained the characterization values reflecting the wrinkled degree of the fabric surface.And coupled with MatLab artificial neural networks model based on LabVIEW,objective evaluation of fabric smoothness grade was accomplished.The experimental results revealed that its reliability reaches 90%.