The work aims to explore the feasibility of numerical-symbol simulation applied in packaging vibration field with the MapleSim software. First, based on the vibration model with the single degree of freedom, a single layer load vibration model was theoretically built and verified. On this basis, a simulation model that could be applied in random vibration was proposed. Furthermore, the calculating method of the simulated key parameters was studied. Finally, the random vibration test was carried out to compare and analyze the experimental and simulation results. PSD analysis showed that the change tendency of simulation PSD and experimental PSD was consistent whether they were in the middle or at the corners. However, the simulation PSD would have some error at low frequency (10~40 Hz), which was more significant for the corner vibration case. Moreover, the Grms value comparison showed that the simulation error was smaller than 10%. The numerical-symbol simulation model based on MapleSim can reflect the real vibration. This simulation method is feasible and reliable for random vibration. The calculating method of the simulated key parameters should be further studied because the proposed method causes some simulation error.