Aiming at the problems such as the load difference of the four hydraulic cylinders in the lifting device of the test section, the asynchronous action of the cylinders, the inclination in the lifting process of the test section with a dead weight of more than 200 t, the great potential safety hazard, the high pressure (60 MPa) of the hydraulic system, the high failure rate, the small flow rate and the low efficiency, it is proposed that on the basis of the existing wind tunnel. Upgrade the mechanical structure, hydraulic system and control system of the test section lifting device. By comparing the newly developed lifting device with the old device, the upgraded lifting device greatly improves the safety, reliability, replacement efficiency and synchronization of the cylinder when replacing the test section. The results show that the hydraulic lifting device in the test section is feasible after upgrading, which provides an important reference for updating and improving the equipment in the later period.