The invention discloses a fluorescent/phosphorescent hybrid white OLED device. Two fluorescent light-emitting layers and a phosphorescent light-emitting layer embedded therebetween form a hybrid light-emitting layer. A first phosphorescent doped light-emitting layer is interposed between hole transport layers. A second phosphorescent doped light-emitting layer is interposed between electron transport layers. The OLED device achieves white light emission by simultaneous light emission of a blue fluorescent material and a phosphorescent material with another color complementary with blue light, is simple in structure, achieves theoretical 100% internal quantum efficiency, obtains high device efficiency, and is reduced in preparation cost.