Abstract: The interface parabolic graded,linear graded and abrupt distributed bragg reflectors（DBRs） were grown by metal organic chemical vapor deposition（MOCVD）.All the samples were designed 8 periods.White light reflectance test results show that the maximum reflectivity of the interface abrupt DBR is larger than that of the others.The atomic force microscopy（AFM） was used to investigate the surface morphology of the three type DBRs.It is shown that the interface linear graded DBR has the minimum roughness and better surface morphology,which can be used in the fabrication of vertical cavity surface emitting lasers.