Appling the design of distributed data base,according to the need of command and display system,and using thread and network technology,a design of distributed data base system is finished that be able to achieve file saving,searching and setting transparency for different limits of authority what realizes safety management of system.

Through the working process which simulates an airplane power-supply system by applying the electronic and electricity equipment,and the fault alarms of the display equipment facilitating the location,analysis and exclusion of the fault,and also the practice,students can master the theory of airplane power-supply system.