Most studies on the application of CsPbBr₃ perovskite quantum dots mainly focus on LED with green light emission, while few reports are applied to WLED. Therefore, the current stability of white LED devices based on CsPbBr₃ perovskite quantum dots is studied. First, CsPbBr₃ perovskite quantum dots are prepared by thermal injection method and their absorption and emission spectra are tested. The absorption and emission peaks are 502 nm and 512 nm, respectively. Then the CsPbBr₃ perovskite quantum dots are mixed with ultraviolet-curable adhesive to form a CsPbBr₃ perovskite quantum dot colloid, and red phosphors are superimposed to make two white light-emitting diodes (WLEDs) with different packaging structures, WLED Ⅰ and WLED Ⅱ. Under a current of 10 mA, WLED Ⅰ has a color rendering index of 92.1, a correlated color temperature of 4323 K, and a lumen efficiency of 33.04 lm/W. All three indicators are higher than WLED Ⅱ. Finally, WLED Ⅰ and WLED Ⅱ are tested for current stability. The performances of the two WLED devices are tested under the conditions of slowly increasing the drive current from 10 mA to 150 mA, switching time of 720 min and driving current of 15 mA. The results show that WLED Ⅰ shows a more stable trend of change.