The　present　work　proposes　the　application　of　CH4　4　and　H2　2　synergy　to　improve　the　performance　of　the　Wankel　rotary　engine　(WRE).　The　whole　work　was　experimentally　conducted　at　1500　r/min.　The　results　indicate　that　CH4　4　WRE　can　achieve　similar　power　and　significantly　higher　thermal　efficiency　than　gasoline　WRE　based　on　quantitative　control,　with　a　maximum　absolute　efficiency　improvement　of　11.4%.　At　the　same　time,　it　also　can　achieve　64%　and　77%　maximum　reduction　of　CO　and　NO　emissions,　respectively.　CH4-H2　4　-H　2　synergy　can　further　improve　the　performance　of　CH4-fueled　4-fueled　WRE,　which　can　broaden　the　lean　flammability　limits　and　make　qualitative　control　application　possible.　Compared　with　CH4　4　WRE　with　quantitative　control,　qualitative　control　hybrid　fuel　WRE　can　achieve　a　maximum　relative　improvement　of　6.54%　in　brake　thermal　efficiency　and　significantly　reduced　NO　and　CO　emissions.　However,　the　extent　of　qualitative　control　is　limited　by　cyclic　variation.　Overall,　CH4-H2　4　-H　2　synergy　can　be　a　potential　alternative　to　elevate　the　performance　of　WRE,　the　key　to　which　is　the　reasonable　match　of　synergy　level　and　qualitative　control　extent.