A computer projection apparatus includes an electrical machine, a Curtain, a support frame I, computers, a transmission line, a Control switch, a Table top, a support II, a processing system, a Tableleg and a foot cup, the motor is secured to the curtain, A support frame I and a support frame II are fixedly arranged on the desktop, the curtain is fixed on the desktop through a support frame I anda support frame II, the computers and the control switches are placed on the desktop, the transmission lines are embedded in the desktop, the Computers are connected together by control switches, theFour legs are fixedly mounted on the bottom surface of the table top, At the end of the leg of the table, A treatment system is fixedly mount on the legs of the table, The device can be projected indifferent places without the limitation of the region, and the projected image quality will not appear the phenomenon of virtual shadow or blur, and the device can be moved to the required place according to the actual needs of people, which greatly saves time, improves the utilization rate of the computer projection function, and enlarges the use range in the field.