The result of this study can be summarized as follows. First, the result of the examination about the theoretical background of the monochrome was influenced by the minimalism and modernism, and consequently the abstract expressionism which is the main trend of the modern painting was formed basing upon the plane feature and unicolor character, and it was recognized that the custom of the plane feature was implied into the monochrome. Second, the aesthetic characteristics such as the beauty of body, beauty of simplicity, beauty of nature, beauty tradition, and beauty whole of the Korean monochrome paintings in 1970s were expressed in the modern fashion as follows. The beauty of body can be told as the dress which exposes the body or See-through look in the modern fashion. The beauty of simplicity is expressed as the most simple and non-decorating minimalism element. The beauty of nature is expressed by using the natural and convenient color without any artificiality. The beauty of tradition is expressed in the Han-bok natural white material. The beauty of whole is easily expressed by using repeated print, partition or overall harmonized beauty.