The tie rods and their front and rear wedge blocks are essential parts of the top pivot on a miter gate. During the removal process of the original miter gate’s top-pivot tie rods，there are problems such as high safety risks and low removal efficiency in loosening the front and rear wedge blocks of the tie rods. Therefore，a safe and effective scheme for removing the top-pivot tie rods on a miter gate is proposed：1）The equipment and process flow are designed for rapidly loosening the wedge blocks of the top-pivot tie rods on the miter gate through research on the removal technology of top-pivot tie rods on a miter gate. 2）The loosening equipment for wedge blocks is checked by calculations and analyzed by the finite element method to verify the reliability of the design. 3）The in-plant and on-site tests of the loosening equipment are conducted，and the feasibility and practicability of the design are verified by the engineering applications. The proposed scheme can effectively reduce construction safety risks and improve the removal efficiency of top-pivot tie rods on a miter gate.