In the history of Mongolian art, the beginning of modern painting is considered in connection with the "First Exhibition of Young Artists" in 1968. Although social-realist paintings developed at the beginning of the 20th century in line with the policies of the party and government, the colors and patterns of some artists' paintings were expressed with new thinking. In Mongolia, the development of modern art has been rapidly developing in recent years in the fields of Cubism, Impressionism, Surrealism, Abstract, and Expressionism, and dozens of works have been created. During this period, the artists and artists of our country kept pace with the global changes and innovations in the field of art studies, created new types of works of modern art, and continued to learn and develop new methods of theory and practice. Since 1990, Mongolia has transitioned from a centrally planned economic system to a market economic system, and individual ideals and freedom have increased not only in the industrial sector but also in the field of painting, and the direction of modern painting has begun to develop rapidly since then. In line with this, in addition to the public access to modern artworks, the need to read, understand, and explain their meaning and content has increased. Moreover, since 1990, the award for the best works of the year of the "Mongolian Art Gallery" has been won by works created in the genre of modern art, which indicates that this genre of art has taken a significant place in the history of Mongolian visual arts. Although modern paintings are being created in large numbers, there is a lack of research that evaluates and analyzes them from the point of view of art studies. In the works of some researchers, the subject of Mongolian modern painting became secondary research and was limited to mention, which is the reason for us to selectively study this topic. The purpose of the research is to analyze the development and classification of modern art of the late 20th and early 21st centuries, which are stored in art galleries. This study aims to create a trend of modernism or monalism that reflects Mongolian traditional thinking. [ABSTRACT FROM AUTHOR]