In　order　to　make　fundamental　research　on　the　combustion　process　of　internal　combustion　engine,　a　new　type　gasoline　fueled　constant　volume　combustion　chamber　(CVCC)　with　more　functions　has　been　successfully　developed,　the　combustion　chamber　is　divided　into　two　parts　(upper　chamber　and　lower　chamber)　by　the　built-in　adaptor,　then　the　simulation　test　for　spark　ignition,　jet　ignition　and　compression　ignition　(auto-ignition)　of　gasoline　engine　is　available.　The　structure,　principle　and　leading　features　of　the　CVCC　test　system　are　introduced　in　detail,　some　test　results　have　been　obtained　by　flame　propagation　photo　and　gas　pressure　measurement,　and　then　some　preliminary　conclusions　have　been　presented.　Owing　to　built-in　adaptor　with　whole,　higher　flame　propagation　speed,　higher　combustion　peak　pressure　value　and　higher　combustion　stability　are　available.　In　some　conditions,　because　of　flame　trap　effect,　compression　ignition　(auto-ignition)　occurs　in　the　lower　combustion　chamber.