A virtual reality interaction system and method have access to data in at least a 3D reality map database and at least a social network website database and allowing a user having logged in the virtual reality interaction system with an electronic device in the user's possession to interact with others and move in a 3D reality scenario. The virtual reality interaction system includes a 3D reality map access unit, a login unit, a social network data access unit, and a computation engine unit. The virtual reality interaction system and method enable the user to perform control operation in the 3D reality scenario according to the user's control command and selectively display the user's social network friends in the 3D reality scenario according to the user's social network relationship data. The user interacts with other online users in the 3D reality diversely and simulates operations in the real world.