This　study　aims　to　explore　the　combined　effect　of　injection　angle　and　injection　pressure　in　a　gasoline　direct　injection　rotary　engine　through　numerical　simulation.　Simulation　results　show　that　with　the　increase　of　injection　angle,　the　fuel　impinging　position　changes　from　the　rotor　recess　to　the　middle　cylinder　block.　At　the　same　injection　angle,　the　fuel　enrichment　area　turns　to　the　front　of　the　combustion　chamber　with　the　increase　of　injection　pressure.　The　lower　injection　angle　is　helpful　to　obtain　a　more　uniform　fuel　distribution.　Especially,　with　increase　of　injection　pressure,　the　in-cylinder　inhomogeneity　index　presents　a　downward　trend.　Under　different　injection　pressures,　the　flame　propagation　period　of　the　0　degrees　injection　angle　is　the　most　stable.　The　stable　flame　development　and　propagation　processes　make　it　easy　to　obtain　higher　indicated　thermal　efficiency.　The　highest　indicated　thermal　efficiency　is　obtained　at　0　degrees　injection　angle　and　15　MPa　injection　pressure,　which　is　up　to　24.99%.　Moreover,　compared　with　the　fuel　intake　port　injection,　part　of　direct　injection　strategies　help　to　get　higher　in-cylinder　peak　pressure.　The　higher　in-cylinder　temperature　promotes　the　formation　of　NOx,　but　the　organization　of　the　incylinder　fuel　distribution　can　effectively　reduce　CO　and　Soot　emissions.(c)　2022　Elsevier　Ltd.　All　rights　reserved.