* * * * Because the concrete artistic creation practice of French "art revolutionaries" such as Cezanne and Toussaint has impacted the traditional artistic creation practice, art took on various forms in the glorious 20th century. Conceptual art appeared in the middle and late 1960s, and became popular in Europe and America in 1970s. The so-called conceptual art refers to the artist's theoretical review of the content and significance of the word "art" and his attempt to propose an updated definition of the concept of "art". Conceptual art is also called "conceptual art". In the view of conceptual artists, the history of artistic development is not entirely the history of artistic skills. Therefore, we should establish a comprehensive artistic concept. The theory of artistic skill center is only the main concept and behavior of artists in 19 century and before. Art is art, and art is essentially the language expression or communication of a certain idea or profound thought. Therefore, being an artist in the modern sense is to prove that art is art, not mathematics, through his own effective artistic creation practice. Therefore, modern artists no longer think that artistic skills are superior or higher than artistic theories. On the contrary, it further clarified and strengthened some concepts of art theory, which had the most direct and crucial influence and guiding role on the specific artistic creation practice. In other words, the differences in various forms of modern art are caused by differences in ideas. Therefore, in the creative practice, in order to show the inner agile mind of the subject as comprehensively as possible, conceptual artists often show the specific practical process of creation and the results of practical behavior to the audience. So that the audience can have a more comprehensive understanding of art and its works in the process of "testing" all three-dimensional artistic creation behaviors. The most famous artists of conceptual art are Atkin, John Stoke and Joseph J. kossuth. Among them, Cassus is the most famous. 1965, he enlarged the photo of a chair and a chair in real life, copied the explanatory text of the concept of "chair" in the dictionary, and then showed it side by side with the title of "one and three chairs". Let the viewer check the concept from the physical object of the chair, and let the viewer form a complete understanding and concept definition of the chair in his mind naturally, intuitively and rationally in the process of slowly checking and examining. In conceptual art, there are conceptual music besides conceptual art, and their artistic ideas are basically the same. The expression forms of concept music are also varied. If there is a concert: when the player is sitting on a piano and other musical instruments, he can't make a sound within a limited playing time. The purpose is to let the audience gradually hear the audience's own voice-either the sound of moving feet, or the sound of whispering, or the sound of the wind blowing through the theater window, and so on. With the passage of time, the audience can think about what "music" is with very rational and quiet thinking. If the player makes a sound, it may be-or "2" or "6" or "4" until the end of the specified performance time or when you think it is time to stop. ..... In short, these artistic actions of conceptual artists are aimed at guiding the audience to seriously reflect on the true essence of art that we have long been accustomed to.