The invention relates to a demonstration apparatus based on virtuality-reality combination, wherein the demonstration apparatus is mainly used for science popularization education and advertisement campaign. The demonstration apparatus comprises a pedestal and a semi-reflecting screen arranged at the pedestal. A semi-symmetric exhibit that is symmetrical to the mirror surface of the semi-reflecting screen and is pasted to the semi-reflecting screen tightly is arranged at the pedestal. Besides, a display is also arranged at one side, opposite to the semi-symmetric exhibit, of the semi-reflecting screen. Therefore, the audience can watch the demonstration effect based on virtuality-reality combination directly at the front side of the demonstration apparatus. According to the virtuality-reality combination, the planar video and the three-dimensional exhibit enter the visibility range of the audience simultaneously through the semi-reflecting screen, thereby substantially improving the ornamental value of the exhibit and the interactivity of the audience and enhancing the demonstration effect.