Using computer simulation technology for simulation and effective evaluation is the current plane the important means of distribution system research. With engineering application needs and provide the test data as the basis, Through airborne power distribution systems and electrical equipment for a detailed analysis, Based on the functional requirement, Based on the schematic and modeling method based on experimental data, Eastablished by the electrical load model and control model aircraft power distribution system composed of the overall simulation model. Use of saber software as whole system is simulated. Experimental results show the system model accuracy, effectiveness and practicality. Compare the simulation results with experiment, The simulation results reflect factually the dynamic process of power distribution system, strong convergence of simulation system for the future application of large-scale system simulation provides a useful reference.