A combined projector structure having a diverse stable display effect of the scene includes a holding space, in which freely-moving living organisms can be kept, an image device mounted on the edge of the holding space and facing toward the holding space. The image device can include a mounting element installed on the edge of the holding space, a kaleidoscope connected to the mounting element and facing toward the holding space, a photographic unit connected to the other end of the kaleidoscope. The photographic unit can record the scenes that appears in the other end of the kaleidoscope, and a projection unit connected to the photographic unit. Through the kaleidoscope, the displacement of the moving living organisms located in the holding space can be displayed in a diverse visual effect.
