Tunnel boring machine(TBM) is wildly used in the underground tunnel boring for its advantages of safety, fast running, economy and environment friendly. The hydraulic propulsion system which is an important part in TBM controls the boring direction. In severe cases, the propulsion cylinder will be subjected to non-periodic vibration. The guide sleeve connected with thread leans to loosen after suffering vibration, which leads to abnormal working of the pushing cylinder. In view of this situation, a new kind of guide sleeve antiloose structure was designed. The simulation was conducted based on the finite element software ANSYS Workbench. The results show that the design can complete the task stably. This design improves the safety and reliability of the TBM.