This study simulated the hoisting of the grid-side lead tube. There are two assembly forms of horizontal and vertical hoisting during the installation of the grid-side lead tube. The structural mechanics simulation of the two hoisting methods was performed using finite element simulation software, and the internal stress was analyzed to find the weak points in the mechanical stress distribution in order to select a better hoisting method. The overall stress distribution of the lead tube under the horizontal and vertical lead tube hoisting methods was obtained. The study found that when grid side lead pipe was suspended horizontally, the maximum stress under the action of gravity alone was 158.28 MPa, and the average stress on the crossbar was 4.8743 MPa; when the lateral acceleration was applied, the maximum stress was 159.08 MPa, the average stress on the crossbar was 5.8424 MPa, and there was an abnormal increase in local stress. When grid side lead pipe was suspended vertically, the maximum stress under the action of gravity alone was 9.8463 MPa, and the maximum stress inside the corrugated paper was 6.3238 MPa; when the lateral acceleration was applied, the maximum stress was 6.0325 MPa, and the tangential stress of the inner metal and corrugated paper were 0.41163 MPa and 0.01903 MPa, respectively, and the stress difference between the two was 0.3926MPa.