The invention relates to a tandem white organic luminescent device. The device includes a substrate, and a first electrode layer, a plurality of blue light fluorescence luminescent units, a plurality of charge generation layers, a plurality of phosphorescence luminescent units and a second electrode layer which are arranged in a stacked manner, and an n type charge generation layer formed by an n type material is arranged between adjacent blue light fluorescence luminescent unit and phosphorescence luminescent unit; each phosphorescence luminescent unit includes a first hole transport layer, a phosphorescence luminescent layer and a first electron transport layer; each first hole transport layer includes a first hole material layer, a transition layer and a second hole material layer; the first hole material layers are in contact with the n type charge generation layers; and the first hole material layers and the n type charge generation layers jointly form the charge generation layers. Since the first hole transport layers adopt a linear evaporation source to form a concentration gradient continuous structure, the number of evaporation sources in an evaporation chamber is reduced, the hole injection barrier is greatly reduced, and thus the voltage of the device can be remarkably reduced, and the efficiency can be improved.