Holographic projection device convenient to adjust

The utility model relates to the technical field of holographic projection, and discloses a holographic projection device convenient to adjust, which comprises a supporting plate, a connecting plate is fixedly mounted at the top of the supporting plate, a shell is fixedly mounted at the bottom of the connecting plate, and a first driving motor is fixedly mounted on the inner bottom wall of the shell. A driving wheel is fixedly mounted on an output shaft of the first driving motor, two bearings are fixedly mounted at the bottom of the shell, fixing rods are fixedly mounted on the inner sides of the bearings, driven wheels are fixedly mounted on the outer sides of the fixing rods, and a crawler belt is in transmission connection between the driving wheel and the outer sides of the two driven wheels; the outer sides of the fixing rods are in threaded connection with telescopic cylinders, and a fixing plate is fixedly installed between the tops of the two telescopic cylinders. According to the holographic project