The present invention discloses a method and a device for providing a game. The method includes: a detection step, for determining an additional display device being attached to a mobile device; and a push step, for pushing multimedia information of the game to the additional display device to be presented by the additional display device, and pushing a visual human machine interface of the game to a display of the mobile device to be displayed by the display; wherein, a controlled object displayed on the additional display device is controlled by the visual human machine interface. The above-mentioned method and device for providing a game can make a game machine have a smaller size and be more portable, display multimedia information of a game on a bigger screen for players and provide players with a visual human machine interface on the entire screen of a mobile device, and therefore it improves user experiences.