The invention discloses an energy-saving fuel gas steam cabinet. The cabinet comprises a cabinet body, a control panel is arranged at one side of the cabinet body, and a soda water returning layer isarranged at the inner side of the cabinet body; a water container is arranged in the cabinet body, a returning flame channel is formed in the water container, and a flue layer is arranged at the innerside of the water container; a controller is arranged at one side of the water container, a timer is arranged at one side of the controller, and a temperature monitor is arranged at the other side ofthe water container; a soda water guide pipe is arranged at one side of the temperature monitor, a fuel gas receiving pipe is arranged at one side of the soda water guide pipe, and a flow meter is arranged at one side of the fuel gas receiving pipe; a fuel gas controller is arranged at one side of the flow meter, and an emergency valve is arranged at one side of the fuel gas controller. Steam andcondensate water of which temperatures descend are recycled, the heat exchange efficiency is prevented from being influenced, the heating speed is increased, the fuel gas utilization rate is increased, the controller adjusts the flow amount of fuel gas, the fuel gas utilization rate is effectively increased, the fuel gas is saved, and the cabinet saves energy and is also environmentally friendly.