In order to study the movement process and action process of F – 1 A fuze, the working process of the fuze was simulated. Using the multi-body system dynamics simulation software MSC ADAMS establishes the virtual prototype model of the fuze, simulates its movement process and obtains the impact kinetic energy against the needle detonator. Use the explicit dynamics simulation software Ansys Workbench LS-DYNA to simulate the detonation process of the fuse detonation transmission sequence, and verify the reliability of detonation transmission between the needle detonator → nonel → booster → main charge. The simulation results show that the simulation can provide data support for the improvement or intelligent transformation of F-1A fuze.