By using the fluorescent dye TBPe and two kinds of phosphorescent dye Ir(ppy)_2acac,R-4B,with blue/red and green do uble-emitting-layer structure,combined with the effective hole restriction of TPBi, the fluorescent-phosphorescent hybrid white organic light-emitting di odes (OLEDs) were prepared with the structure of ITO/MoO₃(X nm)/ADN:(2%)TBPe(30nm)/CBP:Ir (ppy)_2acac(14%):R-4B(2%)(5nm)/TPBi(10nm)/ Alq₃(30nm)/LiF(1nm)/Al(100nm).The influence of MoO_3thickness o n luminescence properties of the devices is studied.The results show that when MoO_3thickness is 20nm,the effi ciency of the device rolls off flatly.When the voltage is 8V,9V,10V,11V,12V,13V,14V,15V,color coordina tes of the devices are respectively (0.31,0.33), (0.30,0.33), (0.29,0.33),(0.29,0.33),(0.29,0.33),(0.29,0.33) and they have high stability.The reason is that the blue/red and green light emitting layer structure has more benefit t o blue light emitting,and using ADN doping blue fluorescent dyes TBPe as the blue light emitting layer can reduce the triplet-triplet annihilation probability.When the voltage is 11V,brightness of the device is 9744cd/m².When the current density is 11.50mA/cm²,the maximum current efficiency is 7.0cd/A.