In anhydrous dyeing research process, a set of self-developed supercritical CO2 fluid dyeing equipment was manufactured. With computer control system, temperature and pressure was controlled accurately in dyeing process. As key components of the supercritical dyeing equipment, the coloring matter kettle and the segregator had a close relationship with the dyeing process. The finite element analysis software ANSYS was used to analyze the static stress of supercritical dyeing equipment. The model of the coloring matter kettle and the segregator were established, and the static stress analysis result of the coloring matter kettle and the segregator were obtained. These models not only confirmed the safety of the dyeing equipment, but also offered related parameters and provided the methods for improving the efficiency of dyeing equipment design.