The present invention relates to a radioactivity prevention drill system using virtual reality. The present invention relates to a radioactivity prevention drill system using virtual reality, which provides drilling environments similar to real situation of complicated disaster such as earthquake or tsunami by applying virtual reality, and also offers outcome of the drill as a user is trained in virtual reality. To this end, the radioactivity prevention drill system using virtual reality comprises: an interface device receiving signals generated based on motion of the user or input from the user; a display part creating virtual reality images and displaying the same; and a virtual reality creation device including a control part correcting the virtual reality images based on the received signals. The control part makes a drill path to be happened for time series through an event tree structure, and provides drilling scenarios which may happen based on combination of success and fail for each event through a logical structure unfolding method.
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