Kizil murals are one of the treasures of mural art in China, and also a historical witness to the integration of multi-ethnic culture and art. Their unique artistic language, rich thematic stories, and profound cultural heritage are all worthy of our in-depth exploration and research. This article mainly conducts a study on the visual art language form of the Maitreya Bodhisattva Douliu Tiangong statement on the semi-circular end face above the front wall of the main chamber of Cave 38. It summarizes and explores the theme content, character introduction, composition relationship, brightness relationship, color matching relationship, and experimental application of illustration art around the Kizil murals. By summarizing, generalizing, transforming, and applying the relationships and laws of these artistic languages, we explore and experiment with the ways and possibilities of language transformation between Kizil murals and modern illustration art creation.