A lamp controller interlocking system of a camera built-in headlamp inventive concepts includes a headlight module integrated with a camera and a light source, a camera controller generating a single frame image by composing an image captured in a short exposure section, in which a shutter opening time of the camera is relatively short, and an image captured in a long exposure section, in which the shutter opening time of the camera is relatively long, and a lamp controller controlling the light source to emit more light in the long exposure section more than in the short exposure section in synchronization with timings of the long exposure section and the short exposure section of the camera.