Its basic embodiment is the expressive force of lines, which depicts objects more fully, deeply and subtly with tones. The two methods complement each other, enriching the aesthetic connotation of Chinese painting "as subtle as possible and as broad as possible", and Chinese painting creation will also develop and evolve with the self-discipline of ontology.

The basic elements of linear sketch are the modeling language of points, lines and surfaces. We should not only grasp the laws of natural images through observation and analysis, but also understand the laws of art from the perspective of formal beauty. The artistic language based on lines, the collision between nature and mind creates a meaningful artistic image.

The use of hue in line drawing is very particular. It is not restricted by light or black and white. Use only when grasping the main part of the object. The hue of linear sketch is subjective, which is the painter's subjective feeling after understanding and analyzing natural objects.