The utility model belongs to the technical field of tunnel water damage training works, specifically an operation tunnel inclined shaft water damage renovation structure. The problem of the preventionand the improvement of tunnel water damage is solved, positive hole and inclined shaft including the cross arrangement, the inclined shaft sets up in positive hole one side and communicates with positive hole, the one side on inclined shaft upper portion is equipped with the lateral sulcus, lateral sulcus lower extreme and the crisscross guide -wall intercommunication that sets up, the guide -wall inboard is equipped with sealing wall, be equipped with water storage space between sealing wall and the guide -wall, sealing wall one side is equipped with observes the hole, the link of observinghole and positive hole is equipped with the steel cat ladder, the link of observing hole and water storage space is equipped with the step, be equipped with the PVC pipe in the sealing wall, the waterdrainage tank in PVC pipe intercommunication water storage space and positive hole. The utility model discloses not only have advantages such as reasonable in design, simple structure, safe and reliable, still effectively got rid of the hidden danger of operation tunnel inclined shaft water damage harm, the security that has improved the operation tunnel greatly.