本文阐述一个新的内燃机测试系统是由那几部分构成的。它的测试功能、测试精度和误差。提出该系统利用计算机丰富的软、硬件对测取参数、实时处理、科学计算、存贮等所带来的方便和好处。并对测试中存在的一些问题进行了分析和探讨。指出目前该系统与当代世界先进水平存在的差距和欠缺,以及努力的方向。 This article explains how a new internal combustion engine test system consists of those parts. Its test function, test accuracy and error. It is put forward that the system uses the rich software and hardware of the computer to bring convenience and benefits to the measurement parameters, real-time processing, scientific calculation and storage. And some problems existing in the test were analyzed and discussed. He pointed out the current gap between the system and the advanced world in contemporary world and the lack of it, as well as the direction of hard work.