The cave temple complex of Dunhuang is a unique example of a large-scale synthesis of arts in the interiors of sanctuaries of the 4th – 114th centuries. The article systematizes the scientific source base, the materials of the graduate student's own field studies, and on their basis, the periodization of wall paintings and sculptures is analyzed and the peculiarities of the genesis of the figurative concept, methods of artistic expression, common plots, etc. are determined.
 The innovation of the presented research consists in summing up the evidence base for known theses. This is traced by various defining features, which are specific plots in different periods, compositional structure, polychromy, methods of detailing. Using the example of the wall painting with Buddha, the well-known chronology of the three stages of the development of the wall painting is visually argued and detailed:
 – 1st stage – period of development (Northern Liang Dynasty (401-439), Northern Wei Dynasty (439-534), Western Wei Dynasty (535-556), Northern Zhou Dynasty (557-581));
 – 2nd stage – the period from prosperity to decline (Sui dynasty (581-618), Tang dynasty (618-907), Five Dynasties and Ten Kingdoms (907-960), the Northern Song dynasty (960–1127);
 – 3rd stage – period of borrowings (Xi Xia dynasty (1038-1227), Yuan dynasty (1271-1368).
 A comparison of the stages of the development of frescoes and sculptures and the periods of the appearance, flourishing and decline of various genres of wall painting (religious Buddhist, portrait, landscape) showed that despite the fact that the political and economic situation, the cultural and artistic preferences and religious commitment of the rulers equally influenced the activation of the development or the decline of art, the stages of development of mural painting and sculpture do not always coincide. In the same way, the period of the appearance and spread of various subjects was analyzed and it was proved that the canonical Buddhist images also underwent significant changes, giving rise to new and new compositions (for example, the appearance in the Tang era of the composition "Buddha in Nirvana" with a giant figure of the Buddha, or the spread of sculptures of a multi-armed Guanyin in the Yuan era).