Abstract: To address the safety concerns such as inadequate strength, safety margin, and structural instability of the dead line anchor rope wheel, the method of adding webs was proposed to solve existing problems of dead line anchor rope wheel according to the mechanical properties and structural characteristics of dead line anchor rope wheel for JGZ97 10 000-meter ultra-deep well drilling rig. With finite element numerical simulation, the structural properties of different different web rope wheels were analyzed, and the three-web rope wheel structure satisfied the safety criteria for drilling operations in terms of both strength and safety margin. The three-web rope wheel was therefore determined to be adopted. The maximum error between the simulated and the experimental results of the three-web rope wheel was 12.95% in the physical experiment, indicating a close alignment between simulation and the experimental results. Moreover, the linear buckling analysis showed that the critical buckling load of the three-web rope wheel under maximum dead line tension was 48.8 times higher than the actual load of the rope wheel, which meet the structural stability requirements. This research shows that the three-web rope wheel can solve the existing problems in dead line anchor rope wheels, providing support for the structural design of drilling rigs for 10 000-meter ultra-deep wells.