The invention discloses a water heater and a control method for the water heater. The control method for the water heater comprises the following steps that the current distance between a specified moving terminal and a preset position is obtained; when the current distance between the specified moving terminal and the preset position is larger than or equal to a preset distance, the water heateris turned off. According to the water heater and the control method for the water heater, after users leave home for larger than or equal to the preset distance, the water heater stops heating, the situation that the water heater wastes energy by heating in cycles due to the users forget to turn off the water heater when going out is avoided, and energy saving of the water heater is facilitated.