Rotted wooden Han Dynasty oxcarts having two huge wheels with a simple,special design characteristic of the Hexi corridor and the western ancient China were unearthed at Mozuizi in Wuwei.Due to their burial and the environment,they have characteristics typical of rotten wood:the body structure has fallen into pieces due to severe corrosion;the wood is shrunken and distorted;wheels are damaged and incomplete;the shaft and axle are broken;ling and di are missing;gu and accessories are highly degraded and powdered.It is impossible to reconstruct the whole piece.Therefore,salvage restoration of these oxcarts was executed.Han Dynasty coffin wood from archaeological sites was used as repair materials.Small pieces of coffin wood treated with polyvinyl acetate (CH₂CH OCOCH₃)_n were used to replace missing parts,and a worn look was achieved.Recycled,aged bamboo sticks were used to restore the axle.Using a dripping and penetrating method,PB72 in ethyl acetate or acetone was applied to consolidate degraded parts.The original apprearance of the cart was achieved by following ancient mortise paring techniques.The results of this restoration are satisfactory.The work demonstrates how suitable materials and technology can be used for restoration of rotten wood.