The invention relates to a one-key automatic steaming cabinet control system, belonging to the field of kitchen equipment control. A power supply is connected with a heating pipe through a main contact on a contactor. The one-key automatic steaming cabinet control system is characterized by comprising a transformer, a time relay, a temperature controller and a button switch, the primary side of the transformer is connected with the power supply, the secondary side of the transformer is connected with the input end of the time relay through a serial button switch, the output end of the time relay is connected with the control end of the contactor through the temperature controller connected in series, and the signal input end of the temperature controller is connected with a temperature sensor. High-voltage power can be transformed by the transformer into low-voltage power for control, the time relay outputs the voltage to control actuation of the contactor, the heating pipe works for steaming, the working time of the electric heating pipe is controlled by the time relay, the food temperature is controlled by the temperature controller, the low-voltage short-range control is realized, the operating time is accurate the operation is simple, the water and power are saved, the high-voltage remote control of the conventional steaming cabinet is perfected, and the defects of irregular operating time and dry-burning of the electric heating pipe as a result of water shortage can be overcome.