The present invention provides an electronic cigarette temperature control system based on a joule mode, comprising a battery for driving an electronic cigarette to operate and an atomizer for heating tobacco tar inside the electronic cigarette to atomize the tobacco tar, the atomizer being hidden inside a battery case. The atomizer is connected to a temperature controller configured to control the temperature of the atomizer, and the battery, the temperature controller and the atomizer are successively and electrically connected to form an electronic cigarette temperature control system. The electronic cigarette temperature control system based on a joule mode as provided by the present invention explains the concept of the system highly accurately. The system shows controllable temperature and controllable output heat. The target temperature is controllable (by adjusting the amount of the output heat). The unit of heat is direct and accurate.
