1. A method for processing surrounding images of a vehicle, applicable to an electronic apparatus disposed on a vehicle, wherein the electronic apparatus is coupled to a plurality of cameras disposed on the vehicle, the method comprising: capturing images of a plurality of perspective views surrounding the vehicle by using the cameras; transforming each of the images from the perspective view into a top view; finding an interval consisting of at least a preset number of consecutive empty pixels from one column of pixels in each of the images of the top view, and dividing the images of the perspective views and the top view into floor side images and wall side images according to a height of the interval in the image; and stitching the divided floor side images and wall side images to generate a synthetic image surrounding the vehicle.