The invention discloses a synchronous displaying method. The synchronous displaying method comprises the following steps that a graph of an ambient environment of a vehicle is collected to obtain a surround view of a place where the vehicle is located and position information of the vehicle in the place, and a model of the vehicle is displayed in the surround view; and synchronous displaying is conducted through two different displaying modes, wherein in the first displaying mode, the model of the vehicle is a 2D model, and in the second displaying mode, the model of the vehicle is a 3D model. Surrounding information and the vehicle model are synchronously displayed through the first displaying mode and the second displaying mode, so that a driver can drive according to the displayed image information. A visual angle needing to be displayed is freely selected in the first displaying mode, an observation visual angle of a real-time image collected by the second displaying mode is also changed correspondingly, more ambient environment displaying is facilitated, the visual angle changing range is wide, and the situation that the vehicle ambient environment condition is observed more intuitively and clearly is facilitated.