A new kind of organic luminescent material 10-Hydroxybenzo[h]quinoline (Bq) was synthesized. The band gap of this material is about 1.98 eV measured by electrochemical cyclic voltammetery. The photoluminescence emission peak was about 616 nm,which was in accordance with the cyclic voltammetry experimental results. The electron cloud of the highest occupied molecular orbit and the lowest unoccupied molecular orbit were calculated by Gaussian 03 software. The organic material Bq and polymer poly(N-vinylcarbazole) (PVK) were dissolved into chloroform according to the weight ratio of 3%. Two kinds of devices ITO/PVK:Bq/BCP/Alq3/Al and ITO/PVK:Bq /Al were fabricated. There was not only 616 nm emission from Bq exaction,but also a peak at 500 nm emission in the electroluminescence spectra. The emission peak at 500 nm should be attributed to the electroplex emission (bimolecular emission) from PVK and Bq molecule. Based on the multilayer devices,the white emission was obtained under different driving voltages and the emission coordinate was about (x=0.37,y=0.38).