Deformation monitoring of the deformation of the company is the purpose of the use of observation data, analyze and grasp the deformation characteristics and regularity of deformation, and the deformation trend forecast. The grey system theory is a "partial information known, the partial information unknown" "small sample" poor information "uncertainty" system as the research object, through the "part" of known information generation, mining, in order to realize precise description and understanding of the whole system. Deformation monitoring data itself is deformation of discrete grey sequence, so the grey system theory was applied to the analysis of the deformation monitoring data processing is a real and effective choice.Discusses the grey model GM (1, 1) the establishment of the test theory and model, make up for the deficiency of the grey prediction theory at the same time, puts forward the gray ? beforehand这样可以么?