The present disclosure provides a three-dimensional (3D) display system and a display method of the 3D display system. The 3D display system includes a display device and 3D glasses, the display device includes a plurality of first micro light emitting diodes, a plurality of second micro light emitting diodes, and a plurality of third micro light emitting diodes which are uniformly distributed. The 3D glasses include a first lens and a second lens. The first micro light emitting diodes and the second micro light emitting diodes are alternately turned on, the third micro light emitting diodes are turned off, or the third micro light emitting diodes and the second micro light emitting diodes are simultaneously turned on.