As for the immaturity of the weld technology applied to the high volume fraction SiC/Al composites, the stability of the space remote sensor skeleton construction was studied. According to the findings of the tolerance analysis of optical deign and structures, the verification of measuring angle and linearity using three-coordinate measuring machine and theodolite was proposed. The feasibility of cementing technology was demonstrated. By the thermal cycling test of frame, the angel and the distance of measuring point were calibrate. The calibrated data was compared. The results show that the torsional angel of the frame is 2.1″ in pitch, 2.3″ in azimuth, and the changes of the distance in the three directions are 0.034 mm, 0.044 mm and 0.034 mm, which can meet the technical requirements of torsional angel smaller than 5″ and the distance tolerance of ±0.05 mm.