介绍了利用虚拟技术改制发动机测试系统的情况。以PC工控机为主控单元、以LabVIEW为软件开发平台研制的发动机测试系统 ,不仅大大减少了各种控制按钮、旋扭及功能切换开关 ,也大大提高了系统的可靠性和抗干扰能力 ,保证了各参数测试的精度和稳定性。虚拟技术在发动机测试系统的应用 ,为发动机的研制生产提供了先进的测试手段 ,也为虚拟技术在其它领域的运用提供了依据 Introduced the use of virtual technology to transform the engine test system. Taking PC industrial computer as the main control unit and LabVIEW as software development platform, the engine test system has not only greatly reduced the variety of control buttons, knob and function switch, but also greatly improves the system reliability and anti-interference ability, All parameters to ensure the accuracy and stability testing. The application of virtual technology in engine test system provides advanced test methods for the development and production of engine and also provides the basis for the application of virtual technology in other fields