Abstract: The present invention relates to a rear screen three-dimension interactive system for a virtual reality. The rear screen three-dimension interactive system for a virtual reality includes a computing device; a display device electrically connected with the computing device, facing toward a user, and showing a three-dimension image for an article to the user; an image sensor electrically connected with the computing device, situated at a front side in front of the display device, keeping a second distance from the display device, and sensing a vision movement made by the user who is situated in the front side; and a motion sensor electrically connected with the computing device, situated at a rear side in back of the display device, keeping a first distance from the display device, and sensing a hand based action made by the user in the rear side.