Based on the virtual instrument technology

a test system for electronic engine controller（EEC）of an aero-engine is designed.The signals of the sensors is simulated.The hardware of the system is established.The program is designed.The test experiments show that all needed signals can be simulated

sent

and collected.The test system is reliable

stable and has high precision.It has important value in studying EEC inside structural and control rule

and designing digital electronical controller for aero-engine.