Based　on　the　band　gap　theory,　a　dual-wavelength　VCSELs　with　same　direction,　equal-intensity,　high-Q　program　is　presented.　The　wavelengths　of　the　VCSEL　can　be　located　with　the　aid　of　the　Al0.8Ga0.2As　defect　layer　in　1D　photonic　crystal　structure.　The　results　indicated　that　one-dimensional　PC　with　a　sheet　of　defect　layer　provides　a　parent　structure　on　which　laser　beam　can　be　well　engineered　without　the　expense　of　the　macroscopic　structural　integrity.