This is a guide plate set for orthognathic surgery.It is an auxiliary device for maxillary osteotomy.It includes: a first bone guide plate,It has a certain position tooth die and a guide part.And the positioning tooth die is connected with the guide by at least one connecting piece.And the guide piece is provided with at least one first hole.So that the guide can be fixed on an upper jawbone;And a second bone guide.It also has a certain position tooth die and a guide part.And the positioning tooth die is connected with the guide by at least one connecting piece.And the guide piece is provided with at least one second hole.To secure the guide to the upper jawbone;Among them,The upper jawbone was cut along the guide of the first bone guide and the guide of the second bone guide.The first and second incisions are interlaced on the upper jawbone.本創作為一種正顎手術導板套組,係為進行上顎截骨手術之輔助裝置,其包括:第一截骨導板,具有一定位齒模及一導引件,且該定位齒模與該導引件係藉由至少一連接件連接,而該導引件設有至少一第一孔洞,以令該導引件鎖固於一上顎骨;以及第二截骨導板,亦具有一定位齒模及一導引件,且該定位齒模與該導引件係藉由至少一連接件連接,而該導引件設有至少一第二孔洞,以令該導引件鎖固於該上顎骨;其中,醫師係先後沿著該第一截骨導板之導引件及該第二截骨導板之導引件對該上顎骨進行切割,於該上顎骨形成相互交錯之第一刀切割痕跡及第二刀切割痕跡。