造型艺术是人类为了表达思想感情和审美感受而进行的一种创造性劳动。素描是造型艺术的基础,是培养锻炼艺术修养,提高审美体验的重要途径之一。素描不仅为造型艺术奠定了基础,也是造型艺术追求个性与思想性的具体体现。为此,从二、三十年代开始,老一辈艺术大师就开始了对素描理论的研究工作。徐悲鸿先生曾提出了素描的 Molding art is a kind of creative work carried out by humankind to express feelings of thoughts and aesthetic feelings. Sketch is the basis of plastic arts, it is one of the important ways to cultivate artistic training and improve aesthetic experience. Sketch not only laid the foundation for the modeling arts, but also the pursuit of individuality and ideology of the modeling arts. To this end, from the 1920s and 1930s, the older generation of art masters began their work on sketch theory. Mr. Xu Beihong has made a sketch