Abstract: Historical interiors of manor complexes as one of the main forms of spatial organization of life in the Russian Empire in the 18th – early 20th centuries are unique historical monuments that unite both social and individual elements charactering everyday life of the privileged classes of the Russian Empire. Stylistically and compositionally, historical interiors of Moscow Oblast manor complexes have a special place increasingly attracting the attention of Russian history and culture researchers. However, today most of Moscow Oblast manor complexes are ruined and their interiors are completely lost. The latest computer technologies grant unique opportunities for their virtual 3D-reconstruction and further preservation. The article generalizes types of interiors of Moscow Oblast manor complexes of the 18th – early 20th centuries and describes the transformation of t interiors throughout the main periods of classical manor complex culture development. The author clarifies a ceremonial interior type by the example of Nikol’skoe-Uryupino manor (Krasnogorsk district, Moscow region, Russia) and reconstructs the interiors in the Main Building and the White House by collecting an extensive database of visual and textual historical sources. The result of this work is 3D-reconstruction of the main ceremonial interiors of Nikol’skoe-Uryupino manor made in Autodesk 3DsMax and visualized in Corona Renderer software. The research was conducted in collaboration with the Central State Archive of Moscow Oblast.