360-degree holographic projection device

The invention relates to the technical field of holographic projection, and discloses a 360-degree holographic projection device which comprises a bottom box, a rotating shaft is movably connected with the bottom of an inner cavity of the bottom box in a sleeving mode, a rotating plate is fixedly installed at the top of the rotating shaft, a side plate is fixedly installed on one side of the top of the rotating plate, an air cylinder is fixedly installed on one side of the side plate, a holographic projection body is placed on the other side of the top of the rotating plate, and a clamping groove is formed in the front side of the holographic projection body. According to the 360-degree holographic projection device, a moving block can be driven to move through uniform contraction of the air cylinder, and then the moving block and a moving plate are movably connected through a connecting plate, so that the moving plate is conveniently driven to move in an inner cavity of a moving groove, and a clamping plate