The present invention relates to an automatic spray system for the anode groove of a carbon vibration molding machine and the control method of the same, which is characterized in that a motor is connected with a hydraulic pump by a shaft coupling, the hydraulic pump is connected with a box for cooling fluid by a pipeline, the box for cooling fluid passes through a one-way valve and a solenoid valve and is connected with a spray head which is fixedly connected with a pushing head by a connecting support. The solenoid valve is guided into the control procedure, a PLC spraying control procedureis built and is controlled by the internal time relay of the RSLogix 5000 software; two manual operation buttons are arranged on the RSVIEW32 software, and the spraying or not spraying, single spraying or double spraying are controlled by a two-position two-way solenoid valve, the switching label directly refers the label of PLC. The spray system of the present invention is capable of praying thecooling fluid automatically on to the groove plate to be cooled, overcoming and solving the crack generated at the groove part of the anode block and the carbon bowl part, effectively improving the quality of carbon product, reducing the reject rate, and achieving the prospective effect.