A method using lens imaging to control hotspots of a vehicle light has steps of providing the area light source having a first shape and a first size, mounting the lens in front of the area light source, choosing a focal length between the area light source and the lens, and determining an angle of view α using the first size of the area light source and the focal length of the lens and generating a hotspot of the vehicle light having the first size and a size range. By changing the height of the area light source and the focal length of the lens, an angle of view formed by light emitted from the area light source and passing through the lens is adjustable. Accordingly, a range of hotspots of the vehicle light is controllable.