In　order　to　investigate　the　effects　on　the　integration　design　of　forebody　and　inlet　made　by　waverider＇s　geometric　parameters　and　flight　parameters,　theoretical　analysis　and　numerical　simulation　are　used　to　optimize　waverider＇s　forebody　and　inlet　which　makes　the　total　pressure　recovery　coefficient　of　inlet　and　drag　coefficient　of　forebody　as　objective　functions　in　the　designing　state　that　the　Mach　number　is　six　and　the　angle　of　attack　is　zero　degree.　Based　on　this,　the　aerodynamic　coefficients　with　varieties　of　angle　of　attack,　Mach　number,　leading　radius　and　forebody　width　are　researched.　The　results　indicate　that　the　configuration　of　the　waverider＇s　forebody　and　inlet　has　a　good　performance　of　angle　of　attack.　The　total　pressure　recovery　coefficient　of　the　optimal　configuration　increases　17.79%　than　the　base　model＇s　and　the　drag　coefficient　of　the　configuration　reduces　78.5%　than　the　base　model＇s.　It　performs　well　consistently　with　hypersonic　vehicle＇s　high　lift　force　and　low　drag　force,　especially　under　the　condition　of　hypersonic　cruise　when　angle　of　attack　is　small.　The　Mach　number　of　the　flowfield　inverse　design　can　be　lower　than　the　expected　Mach　number　when　the　leading　radius　is　less　than　two　millimeters　so　as　to　obtain　a　configuration　of　forebody　with　high　lift-drag　ratio.