Abstract: In order to truly reflect the stress and strain in the sliding process of long-span steel structure, the different stages of cumulative sliding process of steel structure were simulated and analyzed by finite element software. The results showed that the maximum stress area of the steel structure in the sliding process was located in the local range of the track around the loading point. The maximum stress of the double track beam system was 206.4 MPa, greater than that of the single-track beam system. The maximum displacement area was located at the direct connection point between the track and the reticulated shell. The maximum horizontal displacement of the double track beam system was 13.346 mm, less than that of the single track beam system. During the sliding process, the strain of each span track beam decreased first and then increased, but it was far lower than the early warning value. Therefore, a safe and effective sliding construction scheme of long-span steel structure is proposed, which provides a reference for similar construction in the future.