The invention discloses a complete-view three-dimensional space display system based on an MCU (Microprogrammed Control Unit), comprising a bracket, a power supply module, an electric motor and a three-dimensional display screen, wherein the power supply module and the electric motor are arranged on the bracket and supply a regulated-voltage power supply for the three-dimensional display screen, the electric motor drives the three-dimensional display screen to rotate in order to form three-dimensional display effect. Compared with the traditional advertising media, such as an LED display screen, a neon lamp, and the like, the complete-view three-dimensional space display system has unusual three-dimensional aesthetic feeling, optimal visual effect, stable property, less power consumption, high use value, wide application range, and the like.