Abstract: To analyze every factor level and every level combination interaction effect,a double factor level analysis method of simulation results was presented.When the simulation results were not correct,not all the factor levels and the level combination interaction effects were wrong.The presented method can determine which level of which factor has not been simulated correctly,or find out the incorrectly simulated level combination interaction effect.According to the flow chart in the paper,the method can be carried out in practical engineering,and guide the programming and the modification of simulation software system.