The composite material has superior material properties, but it leads to the malpractice of cured deformation. Aiming at the deformation of composite components after cured forming, this paper takes the composite components as the research object, and obtains the deformation data by means of measurement to compensate and correct it. Several measurement bottlenecks such as the establishment of measurement system, the selection of measurement datum and clamping mode, the fast reconstruction of compensation model are discussed.