In order to have a depth research for the combustion process and the status of the engine emissions, it is necessary to develop a excellent combustion analysis system. The data collection, data processing, data computing and other display functions were realized by the self-developed combustion analysis system software, and some relative analyses of cylinder dynamic combustion were done. At the same time, it is so important for designers have an optimization of engine if they use the P-Φ indicator diagrams. Pmax indicator diagrams, air-fuel ratio(ξ)and fuel consumption variation data and so on. The test system for an internal engine combustion analysis through continuous testing and use, is feasible. No doubt, Better user interface and lower costs of this combustion system is pretty good for tester analysis the related data. Designers could facilitate the continuous development and utilization, so it has a certain value in engineering.