介绍了一种用于现场测试汽车发动机压缩压力及转速的测试系统。该系统采用通用的个人计算机、少量的硬件和自行开发的采集分析软件组成 ,可现场测量发动机在装车电瓶驱动下的压缩压力和转速 ,以利于分析装车发动机的技术状况和性能。还介绍了如何用软件的办法简化系统硬件 ,从而使该测试系统更适于现场测试 A test system for on-site testing of engine compression pressure and speed is presented. The system uses a common personal computer, a small amount of hardware and self-developed acquisition and analysis software, which can measure the compression pressure and speed of the engine driven by the loading battery in the field to analyze the technical condition and performance of the loading engine. It also describes how to simplify system hardware by using software to make the test system more suitable for on-site testing