An imaging device for generating and displaying image to simulate movement of 3D objects includes a frame, imaging units, and image output units. The imaging units are arranged between two opposite sides of the frame and connected to one another to define an imaging space therebetween. One side of each imaging unit connects to the frame at a first angle and the opposite side thereof connected to the frame at a second angle. The image output units are arranged on the side of the frame where forming the second angle, such that the image output units face the imaging units in one-to-one correspondence to separately present a first image. The first images presented by the image output units are identical to one another, and are separately transferred by corresponding imaging units to the imaging space to form a simulated image in the imaging space.