Abstract: Through the engineering case of steel structure corridor lifting construction of multi-function hall of China Yagu science and technology innovation park project, the appropriate construction scheme is selected according to the site conditions. When the tower crane cannot meet the material transportation requirements, a 25t truck crane is needed to be used under the projection of the steel corridor. Due to the large construction load, measures should be taken to make the load evenly distributed, and the garage roof truck crane should be positioned Check the structural safety. According to the load calculation under multiple working conditions, the floor directly below the projection of the steel corridor in area B of the multi-functional Pavilion can meet the parking and operation requirements of the truck crane. In order to ensure the construction safety, the steel pipe support frame is set up under the first floor as the safety reserve to ensure the safety in the construction process.