Three-dimensional electronic sand board device

The invention discloses a three-dimensional electronic sand board device which comprises a main control computer, a tablet personal computer, an interaction control touch screen, a 3D (three-dimensional) projector, a rear projection curtain and 3D spectacles, wherein the main control computer carries out data transmission with the tablet personal computer in a wireless mode, the rear projection curtain carries out data transmission with the main control computer in a wireless or wired mode, and when an operator carries out touch control operation on the tablet personal computer or the rear projection curtain, data is transmitted back to the main control computer in real time so as to control to change display contents; the main control computer, the tablet personal computer and the rear projection curtain simultaneously output the display contents; the interaction control touch screen is arranged on the tablet personal computer and is connected with the main control computer by a wireless device; and the main control computer is connected with the 3D projector. The three-dimensional electronic sand board device disclosed by the invention can easily display three-dimensional geographic information, display house multimedia information or simulate the war process according to an input program and vividly display a simulation effect.