本文提出利用变形物体的刚体位移作为散斑法全场分析的光载波,使难以消除的刚体位移转化成可计算条纹级次的有利因素。讨论了光载波与形变位移、总位移产生的条纹之间的调制关系,对非整数级条纹进行了补偿,提高了散斑法全场分析的精度,为计算机全自动计算全场条纹级次提供了预处理方法,并对一受载剪切墙各点的全场分析的条纹级次进行了具体的计算. This paper presents the use of rigid body displacement deformation of the object as a comprehensive analysis by speckle method of optical carrier, the hard-to-remove rigid body displacement can be calculated to calculate the fringe order favorable factors. The modulation relationship between the optical carrier and the fringes generated by the displacement and the total displacement is discussed. The non-integral fringes are compensated to improve the accuracy of the full-field analysis by the speckle method. The pretreatment method was used to calculate the streak level of the full field analysis of each point of the loaded shear wall.