Comprehensive　evaluation　for　hypersonic　vehicle　trajectory　optimization　algorithm　has　good　reference　value　on　selecting　optimal　trajectory　optimization　algorithm.　According　to　the　features　of　hypersonic　vehicle,　trajectory　was　decomposed　into　ascent,　cruise　and　descent　stages;　the　performance　evaluation　indices　of　each　stage　and　the　typical　methods　of　weighting　for　performance　evaluation　index　were　given　respectively.　Combining　with　the　analysis　theory　of　grey　correlation　degree,　a　comprehensive　evaluation　method　of　trajectory　optimization　algorithm　was　proposed.　The　calculation　results　show　that　the　method　can　quantitatively　evaluate　trajectories　produced　by　trajectory　optimization　methods　and　sort　the　alternative　optimization　methods　by　merits.　©,　2015,　National　University　of　Defense　Technology.　All　right　reserved.