The present invention provides an oven, including: an oven body; and a gas circuit system and an electric circuit system, both of which are installed on the oven body; the gas circuit system includes: a gas pipeline; a combustor installed in the oven body and being in communication with an outlet of the gas pipeline; a control switch installed on the gas pipeline; and an electric control valve controlling connection and disconnection of the gas pipeline together with the control switch; the electric circuit system includes: a controller connected to the electric control valve and matched with the control switch for use, wherein when the control switch is turned on, the controller switches on the electric control valve, and when the control switch is turned off, the controller switches off the electric control valve; and a timer.