Abstract:Qianlong Garden is located on the West Road in the Back District of Ningshou Palace. There are a variety of wallpaper remains in the inner eaves,which contain a lot of historical information. However,due to the influence of time,environment and other factors on papering,a large number of indoor paper there are dust,layering,missing,hollowing,bone separation,cracks and other diseases. The interior walls of the three courtyards of Qianlong Garden are mostly ramie and mortar basement,and hollowing and falling off is a common problem of the basement,which affects the smoothness and stability of wallpaper.Taking the test site on the first floor of the Cuishang Building as an example,this paper shows that when the pasting paper has the above diseases,the existing problems can be solved by means of dust removal,uncovering,handling the basic level,repairing the paper and pasting. After the restoration of the experimental site,the original pasting was preserved in site with stability and level,and the historical information was preserved to the maximum extent.