纳森旧宅四合院是传统二进式硬山建筑。由于年久失修,需对建筑物进行整体的文物保护性修缮,尤其是柱、梁、枋、门窗、油漆爆皮,地仗鼓闪,油饰剥落。文中本着不改变文物原状的原则,介绍对四合院的彩画进行修复的工艺。 Nathan Old House Siheyuan is a traditional binary hard mountain architecture. As a result of disrepair, the building should be rehabilitated as a whole cultural relics, especially columns, beams, bilges, windows and doors, paint blasting, drums, oil stripping. In the article, the principle of not changing the original state of cultural relics is introduced, and the technique of repairing the colored picture of the courtyard is introduced.