Abstract: The quartet Mound wall belongs to the west of the Great Wall in Zhongwei, Ningxia The Great Wall in Ningxia west built in the era of Emperor Hanwu, is a part of the Great Wall of the Han dynasty, due to wind erosion, freezethaw, rain erosion, flood washing, sand buried, such as the destruction of the natural role, and the bees, mice to make holes in the wall, vegetation root chopping, such as the destruction of the biological effect, this article finds out site the barbican, castle, the Great Wall of the kinds of diseases and their potential risk, and carries on the qualitative analysis, puts forward the prevention and control measures; finds out the physical and mechanical and chemical properties of rammed earth wall, to repair prolec engineering detailed engineering geological data and the design of disease investigation and study for the design of the required technical parameters.