Abstract: For the problem of the impact of arrest wire on the vehicles and endangering the safety of drivers in rubber wheels intercept during the process of inclined shaft transportation, taking safety protection system of rubber wheels as research object, the mechanical law of each mechanism is analyzed. Numerical simulation software was used to simulate the acceleration and displacement curves of stalled vehicle under different stress state of arrest wire. According to the results, arresting effect of cable in different stress state is analyzed, and compared with experimental result, reasonability of test model is verified; arresting force loading method is explored, which provides theoretical basis for optimal design of arresting mechanism.