The present disclosure provides a standable OLED display device comprising a first shell, a second shell, a support plate, four first rods, and an OLED panel. The first shell and the second shell have sliders and chutes. Each slider partially slides in a corresponding chute. Two first rods are rotatably connected to the first shell and the support plate. Two other first rods are rotatably connected to the second shell and the support plate. The OLED panel is disposed on the support plate, the first shell, and the second shell, and two opposite sides thereof are respectively inserted in the first shell and the second shell. When the first shell and the second shell slide close to each other, the support plate rises in parallel with respect to the first shell and the second shell so that the device is changed from an initial planar state to a standing state.