A kind of near white emitted organic LED with structure of ITO/SA/PBD/Znq2/Al has been made. Here SA, a styryltriphenylamine derivative, is N (2 p methelphenyl) styryl N p methoxylphenyl beneneamine, PBD, a oxadizole derivative, is 2 (4 t butylphenyl) 5 (4 biphenylyl) 1, 3, 4 oxadizole, and Znq2 is 8 hydroxylquinoline Zinc chelate. The EL performance of single layer diode (SLD), double layer diode (DLD) and triple layer diode (TLD) have been investigated. The variation of EL spectra of two kinds of TLD′s with different thickness of organic layers by change the driven voltage indicates that the near white emission come from the recombination of electron and hole in both SA layer and Znq2 layer. The current density voltage (I V) characteristics and the brightness voltage (B V) characteristics of the single, double and triple layer devices have also been investigated in deteil.