In order to ensure that the strength of the truss meets the application requirements of centrifugal composite calibration under the ultimate load condition of the centrifugal composite calibration device, the finite element analysis and verification test process of the truss structure were studied. ANSYS finite element analysis software was used to design the simulation process to complete the centrifugal boom truss structure analysis. The whole analysis process was described from the structure composition, model establishment, grid division, load constraint setting and other programs. By analyzing the result nephogram, it is confirmed that the stress result of truss meets the requirement of mechanical structure. The results of structural analysis are verified by the calibration test of the linear accelerometer. The results show that the structural strength of the truss meets the requirements of use, the deformation is close to the measured value, the structural analysis results are in accordance with the actual application test value, and the analysis results are reliable. The process and verification method of truss analysis can provide reference for similar truss analysis.