Abstract: The patent relates to the technical field of smart wearable device, and discloses a watch with the function of automobile key, including: watch case, which is hollow inside and open at both ends, the watch case is made of metal material, the watch case is provided with a rubber cover, one end of the rubber cover is provided with a holding groove, the holding groove is provided with a watch movement, the first power supply for providing electric energy to the watch is provided in the watch movement, and one end of the watch movement that is far away from the rubber cover is provided with a dial, dial is provided with hands, the rubber cover is provided with a automobile key module, the automobile key module is provided with a locking button for closing the door lock and a unlocking button for opening the door lock, and one end of the automobile key module is provided with a second power supply for providing power to the automobile key module.