Texture refers to a kind of concave-convex texture effect on the surface of oil painting because the author uses different tools, materials and techniques, and also refers to the "surface structure" or "surface characteristics" of oil painting. In oil painting, texture is also an important technique with unique aesthetic value. The texture aesthetic feeling presented by the surface structure of oil painting is an important part of the formal beauty of oil painting works. Texture is an overall artistic effect presented by the organic combination of oil painting color layer, brush strokes and other expression languages and foundations. It is an important knowledge of oil painting art, which directly conveys the artist's psychological feelings and affects the appeal of the works. Therefore, many artists attach great importance to the use of materials and techniques in the process of making oil paintings, and pursue the distinctive characteristics of painting muscles, giving people different aesthetic pleasure. Oil painting texture is an important visual element to present the texture, modeling and rendering modeling of objects. In many cases, it is used as a means to deal with the material of the design object, to reflect the quality of the design object and the style of the material, as a specific style accepted by people and a factor to become fashionable. The concept of texture, as a positioning of natural object observation method, will strengthen the understanding of object matrix. It tempts people to experience and touch with vision or mind, and objects and vision produce intimacy and visual pleasure. Observing the texture helps us to know, understand, express and recreate the form, and helps us to deeply understand the meaning and function of formal language.